TopicGeneral Maths
Statistics & probability · SS1–SS2
Statistics: data & averages
Organising data in tables and charts, and the mean, median and mode.
- Before this
- Number foundations & fractions
- Leads to
- Dispersion & cumulative frequency
Learn
- 1Mean, median and modeThe three averages: what each one measures, how to find them from a list or a frequency table, and the total trick behind most mean questions.Done15 min
- 2Grouped data and the assumed meanFrequency tables with classes: class marks and boundaries, the mean by table (directly or with an assumed mean), and the median and mode of grouped data.Done18 min
- 3Pie charts, bar charts and histogramsDrawing and reading the three charts WAEC asks for: pie-chart angles, bar charts with gaps, and histograms on class boundaries, including the mode from a histogram.Done15 min
Practise
Answer statistics: data & averages questions one at a time. You'll know straight away whether you're right, with hints and the working step by step.
Your progress is saved on this device as you practise. No account needed.
Past questions (169)
From 1983–2025: 62 WAEC, 17 NECO, 90 JAMB. Theory questions first, then objective, newest first.
Theory (48)
- WAEC 2025 · Paper 2 · Q5The table shows the marks scored by 32 students.
- NECO 2024 · Paper 2 · Q12The table shows the scores of candidates.
- WAEC 2024 · Paper 2 · Q7The table shows the ages of 20 children in a household.
- NECO 2023 · Paper 2 · Q12The scores of students in a Biology test in a particular school are 12, , 15, , 25, 12, 30, 15, 25, 12, 16 and 12. If the mean score is …
- NECO 2023 · Paper 2 · Q5In a certain school, the principal gave the analysis of the qualified subject teachers as follows.
- WAEC 2023 · Paper 2 · Q9| Height (m) | 3 | 4 | 5 | 6 | 7 | 8 |
- WAEC 2023 · Paper 2 · Q11The table shows the frequency distribution of the ages of fifty members of a family.
- WAEC 2023 · Paper 2 · Q5The heights (in cm) of 10 students in a class are: and . Find the:
- NECO 2022 · Paper 2 · Q12The pie chart below shows the sectorial allocation of subjects offered by 720 students in a college.
- WAEC 2022 · Paper 2 · Q10| Age (years) | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- WAEC 2022 · Paper 2 · Q8| Item | Food and drinks | Fuel | Rent | Building project | Education | Savings |
- WAEC 2022 · Paper 2 · Q11| Age (years) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
- WAEC 2022 · Paper 2 · Q5A bird perches on the top of a slanted tree of length . If the bird is vertically above the ground, (i) illustrate …
- WAEC 2022 · Paper 2 · Q11| Marks | 2 | 3 | 4 | 5 | 6 |
- WAEC 2021 · Paper 2 · Q11| Number of hours per day | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
- WAEC 2021 · Paper 2 · Q5| Child's name | Ann | Afia | Kojo | Nuno | Akosua |
- WAEC 2021 · Paper 2 · Q5| Age | 12 | 13 | 15 | 10 | 14 | 16 |
- WAEC 2020 · Paper 2 · Q6Using an assumed mean of , calculate the mean of and .
- WAEC 2020 · Paper 2 · Q3The ages of some lecturers are 42, 54, 50, 54, 50, 42, 46, 46, 48 and 48. Calculate the:
- WAEC 2020 · Paper 2 · Q10The ages of 14 children at a party are given as follows: 12, 6, 5, 4, 8, 13, 11, 2, 5, 7, 1, 9, 10 and 3.
- WAEC 2019 · Paper 2 · Q7The data show the marks obtained by students in a Biology test. 50 56 25 56 68 73 66 64 56 48 20 39 9 50 46 54 54 40 50 96 36 44 18 97 65 21 …
- WAEC 2019 · Paper 2 · Q7The following are the scores of 48 students in a promotion test. 52 56 25 56 68 73 66 64 56 48 15 88 20 39 9 50 98 54 54 40 50 96 53 16 36 44 …
- WAEC 2019 · Paper 2 · Q9A selection interview was conducted for 110 students into various subjects in a Science department. 25 were selected for Physics, 45 for Biology …
- WAEC 2018 · Paper 2 · Q13| Marks | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 |
- WAEC 2018 · Paper 2 · Q5If the mean of , , , and is 12, calculate the mean of , , , and .
- WAEC 2018 · Paper 2 · Q11If , find in terms of .
- WAEC 2018 · Paper 2 · Q5| Score | 1 | 2 | 3 | 4 | 5 | 6 |
- WAEC 2018 · Paper 2 · Q3| Price (₦1,000,000) | 1.0–1.9 | 2.0–2.9 | 3.0–3.9 | 4.0–4.9 | 5.0–5.9 |
- WAEC 2017 · Paper 2 · Q8| Marks | 1 | 2 | 3 | 4 | 5 |
- WAEC 2017 · Paper 2 · Q5| Marks | 40 | 41 | 42 | 43 | 44 | 45 | 46 |
- WAEC 2016 · Paper 2 · Q9The weight (in kg) of 50 contestants at a competition is as follows: 65 66 67 66 64 66 65 63 65 68 64 62 66 64 67 65 64 66 65 67 65 67 66 64 …
- WAEC 2016 · Paper 2 · Q1Simplify: .
- WAEC 2016 · Paper 2 · Q12| Marks | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
- WAEC 2014 · Paper 2 · Q11The probabilities that Manful, John and Ernest will pass an examination are , and respectively. Find the probability …
- WAEC 2013 · Paper 2 · Q3The present ages of a father and his son are in the ratio . If the son is 15 years old now, in how many years will the ratio of their …
- WAEC 2013 · Paper 2 · Q11The histogram shows the height of a group of students in a school.
- WAEC 2013 · Paper 2 · Q5The pie chart shows the result of a survey conducted on the maintenance of five small and medium scale industries in a state. If the cost of …
- WAEC 2013 · Paper 2 · Q9Solve: .
- WAEC 2012 · Paper 2 · Q10| Marks | 60–64 | 65–69 | 70–74 | 75–79 | 80–84 | 85–89 | 90–94 | 95–99 |
- WAEC 2012 · Paper 2 · Q12The ages (in years) of men selected from a community are as follows: 44 28 58 50 93 35 34 52 57 61 40 63 90 67 64 56 51 82 73 43 73 73 44 71 …
- WAEC 2012 · Paper 2 · Q5A trader bought an article in Sierra Leone at Le 360,000. He paid of the cost price as import duty on entering Nigeria. If the rate of …
- WAEC 2011 · Paper 2 · Q11| Score | 1 | 2 | 3 | 4 | 5 | 6 |
- WAEC 2011 · Paper 2 · Q5A library received a $1,300 grant. It spends of the grant on magazine subscriptions, on new books, to repair damaged books, to buy new furniture and to train library staff.
- WAEC 2009 · Paper 2 · Q3The table shows the number of children per family in a community.
- WAEC 2009 · Paper 2 · Q8The marks scored by 50 students in a Geography examination are as follows:
- WAEC 2009 · Paper 2 · Q7The marks scored by 50 students in a Geography examination are as follows:
- WAEC 2008 · Paper 2 · Q8The data below are the ages, in years, of 45 people.
- WAEC 2008 · Paper 2 · Q5The table shows the distribution of marks of 20 students in a class test.
Objective (121)
- WAEC 2025 · Paper 1 · Q44Find the mode of 8, 10, 9, 9, 10, 8, 11, 8, 10, 9, 8, 14.
- WAEC 2025 · Paper 1 · Q47The mean of 20 observations is 4. If the largest observation, 23, is removed, find the mean of the remaining observations.
- WAEC 2025 · Paper 1 · Q49Find the median of 2.64, 2.50, 2.72, 2.91, 2.35.
- NECO 2024 · Paper 1 · Q49Given the numbers 11, 8, 9, 6, 4, 3, 10, 2, 6, 5, calculate the mean.
- NECO 2024 · Paper 1 · Q50Given the numbers 11, 8, 9, 6, 4, 3, 10, 2, 6, 5, find the median.
- NECO 2024 · Paper 1 · Q51Given the numbers 11, 8, 9, 6, 4, 3, 10, 2, 6, 5, find the mode.
- WAEC 2024 · Paper 1 · Q39The following are the masses (in kg) of members in a club: 59, 44, 53, 57, 49, 40, 48 and 50. Use the information to answer questions 39 and …
- NECO 2023 · Paper 1 · Q52The pie chart shows the distribution of candidates who sat for certain subjects in a school certificate examination. What angle represents the …
- NECO 2023 · Paper 1 · Q53Using the same pie chart, what percentage of the students sat for English Language, correct to the nearest whole number?
- NECO 2023 · Paper 1 · Q54Find the mean of the frequency distribution, correct to one decimal place.
- NECO 2023 · Paper 1 · Q55The table shows the scores of applicants in an interview. If an applicant is chosen at random, what is the probability that the applicant scored …
- NECO 2023 · Paper 1 · Q57The mean of the numbers 2, 5, , 6 is 4. What is the value of ?
- WAEC 2023 · Paper 1 · Q42The bar chart represents the distribution of marks scored by students in an economics examination. If the fail mark was 4, what is the probability …
- WAEC 2023 · Paper 1 · Q43Using the bar chart in the previous question (marks 1–8 with frequencies 3, 6, 9, 1, 12, 7, 5, 10), what percentage of the students scored at …
- WAEC 2023 · Paper 1 · Q44Using the same bar chart, how many students scored at least 3 marks?
- NECO 2022 · Paper 1 · Q49The mean age of seven children is 10 years. The ages (in years) of six of the children are 3, 6, 8, 14, 15 and 16. Calculate the age of the seventh …
- NECO 2022 · Paper 1 · Q50The mean age of seven children is 10 years. The ages (in years) of six of the children are 3, 6, 8, 14, 15 and 16. Find the modal age.
- NECO 2022 · Paper 1 · Q51The mean age of seven children is 10 years. The ages (in years) of six of the children are 3, 6, 8, 14, 15 and 16. What is the median age?
- NECO 2022 · Paper 1 · Q52The mean of the following set of data: 5, 7, 9, and 6 is 6. Determine the value of .
- NECO 2022 · Paper 1 · Q56Find the mode of the distribution below, correct to one decimal place.
- WAEC 2022 · Paper 1 · Q33The mean of a set of 10 numbers is 56. If the mean of the first nine numbers is 55, find the 10th number.
- WAEC 2022 · Paper 1 · Q39The ages in years of some members of a singing group are 12, 47, 49, 15, 43, 41, 13, 39, 43, 41 and 36. Find the mean.
- WAEC 2022 · Paper 1 · Q45The mean of two numbers and is 4. Find the mean of the four numbers , , and .
- WAEC 2021 · Paper 1 · Q31Find, correct to two decimal places, the mean of , , , and .
- WAEC 2021 · Paper 1 · Q40| Height (cm) | 160 | 161 | 162 | 163 | 164 | 165 |
- WAEC 2021 · Paper 1 · Q44The pie chart represents the distribution of fruits on display in a shop. If there are 60 apples on display, how many oranges are there?
- WAEC 2020 · Paper 1 · Q34The pie chart shows the population of men, women and children in a city. If the population of the city is 1,800,000, how many men are in the …
- WAEC 2019 · Paper 1 · Q46The pie chart represents fruits on display in a grocery shop. If there are 60 oranges on display, how many apples are there?
- WAEC 2019 · Paper 1 · Q47The following are scores obtained by some students in a test: 8, 18, 10, 14, 18, 11, 13, 14, 13, 17, 15, 8, 16 and 13. Find the mode of the distribution.
- WAEC 2019 · Paper 1 · Q48The following are scores obtained by some students in a test: 8, 18, 10, 14, 18, 11, 13, 14, 13, 17, 15, 8, 16 and 13. Find the median score.
- WAEC 2019 · Paper 1 · Q49The following are scores obtained by some students in a test: 8, 18, 10, 14, 18, 11, 13, 14, 13, 17, 15, 8, 16 and 13. How many students scored …
- JAMB 2017 · UTME (set 2) · Q14Find the sum of the range and the mode of the set of numbers 10, 9, 10, 9, 8, 7, 7, 10, 8, 10, 8, 4, 6, 9, 10, 9, 7, 10, 6, 5.
- JAMB 2017 · UTME (set 2) · Q23The pie chart shows the allocation of money to each sector of a farm. The total amount allocated to the farm is ₦80,000. Find the amount allocated …
- JAMB 2016 · UTME · Q34Thirty boys and girls sat for a test. The means of the boys' and the girls' scores were 6 and 8 respectively. Find if the total score …
- JAMB 2015 · UTME · Q10The mean of the numbers 1.2, 1.0, 0.4, 1.4, 0.8, 0.8, 1.2 and 1.1 is
- JAMB 2015 · UTME · Q20Marks scored by some children in an arithmetic test are 5, 3, 6, 9, 4, 7, 8, 6, 2, 7, 8, 4, 3, 2, 1, 0, 6, 9, 0, 8. The arithmetic mean of the …
- JAMB 2015 · UTME · Q24The mean age of 30 pupils in a class is 15.3 years. One boy leaves the class and one girl is enrolled, and the new mean age of the 30 pupils …
- JAMB 2015 · UTME · Q25A world congress of mathematicians was held in Nice in 1970 with 800 people participating: 300 from Europe, 200 from America, 150 from Asia, …
- JAMB 2014 · UTME · Q43The pie chart shows the monthly distribution of a man's salary on food items. If he spent ₦8,000 on rice, how much did he spend on yam?
- JAMB 2014 · UTME · Q45| Values | 0 | 1 | 2 | 3 | 4 |
- JAMB 2014 · UTME · Q46Find the median of 5, 9, 1, 10, 3, 8, 9, 2, 4, 5, 5, 5, 7, 3 and 6.
- JAMB 2013 · UTME · Q42Find the mean of , , and .
- JAMB 2013 · UTME · Q43The mean of seven numbers is 10. If six of the numbers are 2, 4, 8, 14, 16 and 18, find the mode.
- JAMB 2013 · UTME · Q44| Age | 20 | 25 | 30 | 35 | 40 | 45 |
- JAMB 2012 · UTME · Q41The grades of 36 students in a class test are shown in the pie chart (Pass , Credit , Very good ). How many students …
- JAMB 2012 · UTME · Q42The bar chart shows the distribution of marks in a class test. If the pass mark is 5, what percentage of students failed the test?
- JAMB 2012 · UTME · Q43The mean of seven numbers is 96. If an eighth number is added, the mean becomes 112. Find the eighth number.
- JAMB 2012 · UTME · Q44Find the median of 2, 3, 7, 3, 4, 5, 8, 9, 9, 4, 5, 3, 4, 2, 4 and 5.
- JAMB 2011 · UTME · Q42The bar chart shows the distribution of SS2 students in a school. Find the total number of students.
- JAMB 2011 · UTME · Q45| Class interval | 0–2 | 3–5 | 6–8 | 9–11 |
- JAMB 2010 · UTME · Q45| Marks | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
- JAMB 2004 · UME · Q40The pie chart shows the distribution of the crops harvested from a farmland in a year. If 3000 tonnes of millet is harvested, what amount of …
- JAMB 2004 · UME · Q43The mean age of a group of students is 15 years. When the age of a teacher, 45 years old, is added, the mean becomes 18 years. Find the number …
- JAMB 2003 · UME · Q40The histogram shows the ages of the victims of a pollution. How many people were involved in the pollution?
- JAMB 2003 · UME · Q41Find the mean of the distribution below.
- JAMB 2003 · UME · Q44On a pie chart there are four sectors, three of which have angles , and . If the smallest sector represents ₦28.00, …
- JAMB 2003 · UME · Q46The result of tossing a fair die 120 times is summarized below. Find the value of .
- JAMB 2003 · UME · Q50By how much is the mean of 30, 56, 31, 55, 43 and 44 less than the median?
- JAMB 2002 · UME · Q22The mean of a set of six numbers is 60. If the mean of the first five is 50, find the sixth number.
- JAMB 2002 · UME · Q24The distribution shows the number of days a group of 260 students were absent from school in a term. How many students were absent for at least …
- JAMB 2002 · UME · Q26Find the mean of the data 7, −3, 4, −2, 5, −9, 4, 8, −6, 12.
- JAMB 2002 · UME · Q29The acres of rice, plantain, cassava, cocoa and palm oil in a certain district are 2, 5, 3, 11 and 9 respectively. What is the angle of the sector …
- JAMB 2001 · UME · Q40The bar chart shows the colours of cars passing a point on a street in two minutes. What fraction of the total number of cars is yellow?
- JAMB 2001 · UME · Q41The histogram shows the distribution of passengers in taxis of a certain motor park. How many taxis have more than 4 passengers?
- JAMB 2001 · UME · Q42Using the table below, find the square of the mode.
- JAMB 2001 · UME · Q43Using the same table, the mean score is
- JAMB 2000 · UME · Q44A die is rolled 240 times with the results below. If a pie chart is constructed to represent the data, the angle corresponding to 4 is
- JAMB 2000 · UME · Q48Find the sum of the range and the mode of the numbers 10, 5, 10, 9, 8, 7, 7, 10, 8, 10, 8, 4, 6, 9, 10, 9, 10, 9, 7, 10, 6, 5.
- JAMB 2000 · UME · Q50The table shows the frequency distribution of the ages (in years) of pupils in a secondary school. What percentage of the pupils are over 15 …
- JAMB 1999 · UME · Q46The grades of 36 students in a class test are shown in the pie chart. How many students had excellent?
- JAMB 1999 · UME · Q47The marks scored by students in a test are given below. Find the median.
- JAMB 1999 · UME · Q48A student calculated the mean of 5 numbers as 45.3. While rechecking his working, he discovered that his total was short by 20.5. What is the …
- JAMB 1999 · UME · Q49The allocations to various ministries in a state budget are: Agriculture ₦25,000,000; Education ₦20,000,000; Women Affairs ₦35,000,000; Commerce …
- JAMB 1998 · UME · Q42If and are the mean and median respectively of the numbers 2, 3, 9, 7, 6, 7, 8, 5, find to the nearest whole number.
- JAMB 1998 · UME · Q43Estimate the mode of the frequency distribution below.
- JAMB 1998 · UME · Q47The pie chart shows the monthly expenditure of a public servant. The monthly expenditure on housing is twice that of school fees. How much does …
- JAMB 1998 · UME · Q48The bar chart shows the distribution of marks scored by 60 pupils in a test in which the maximum score was 10. If the pass mark was 5, what percentage …
- JAMB 1997 · UME · Q43The pie chart shows the income of a civil servant in a month. If his monthly income is ₦6000, find his monthly basic salary.
- JAMB 1997 · UME · Q44In an examination, the result of a certain school is as shown in the histogram. How many candidates did the school present?
- JAMB 1997 · UME · Q45Find the median age of the frequency distribution below.
- JAMB 1997 · UME · Q46The scores of ten students in a test of 20 marks are 15, 16, 17, 13, 16, 8, 5, 16, 19, 17. What is the modal score?
- JAMB 1995 · UME · Q42The frequency distribution below shows the ages of students in a secondary school. In a pie chart of the data, the angle for the 15-year-olds …
- JAMB 1994 · UME · Q43The grades A1, A2, A3, C4 and F earned by students in a course are shown in the pie chart. What percentage of the students obtained a C4 grade?
- JAMB 1994 · UME · Q45The mean of twelve positive numbers is 3. When another number is added, the mean becomes 5. Find the thirteenth number.
- JAMB 1993 · UME · Q42Quantities in the proportions 1, 4, 6, 7 are to be represented in a pie chart. Calculate the angle of the sector with proportion 7.
- JAMB 1993 · UME · Q43The bar chart shows the distribution of marks in a class test. How many students took the test?
- JAMB 1993 · UME · Q44The following marks were obtained by twenty students in an examination: 53, 30, 70, 84, 59, 43, 90, 20, 78, 48, 44, 60, 81, 73, 50, 37, 67, 68, …
- JAMB 1993 · UME · Q45Estimate the mode of the frequency distribution below.
- JAMB 1993 · UME · Q46The mean of the ages of ten secondary school pupils is 16, but when the age of their teacher is added, the mean becomes 19. Find the age of the …
- JAMB 1992 · UME · Q42A storekeeper checked his stock of five commodities: F 215, G 113, H 108, K 216, M 68. What angle will commodity H represent on a pie chart?
- JAMB 1992 · UME · Q43If the mean of the frequency distribution below is 5.2, find .
- JAMB 1992 · UME · Q44Find the mode and median respectively of the distribution below.
- JAMB 1991 · UME · Q48Fifty boxes, each of 50 balls, were inspected for the number which were defective, with the results below. The mean and the median of the distribution …
- JAMB 1991 · UME · Q49Using the same table, find the percentage of boxes containing at least 5 defective balls each.
- JAMB 1990 · UME · Q46The numbers 4, 16, 30, 20, 10, 14 and 26 are represented on a pie chart. Find the sum of the angles of the sectors representing all numbers equal …
- JAMB 1990 · UME · Q48The scores of a group of students in a test are shown. If the average score is 3.5, find the value of .
- JAMB 1989 · UME · Q46In preparing rice cutlets, a cook used 75 g of rice, 40 g of margarine, 105 g of meat and 20 g of bread crumbs. Find the angle of the sector …
- JAMB 1989 · UME · Q48In a family of 21 people, the average age is 14 years. If the age of the grandfather is not counted, the average age drops to 12 years. What …
- JAMB 1989 · UME · Q49If is the median and is the mode of the numbers 2.4, 2.1, 1.6, 2.6, 2.6, 3.7, 2.1, 2.6, then is
- JAMB 1988 · UME · Q47In a class of 150 students, the sector of a pie chart representing the students offering Physics has angle . How many students are …
- JAMB 1988 · UME · Q48If and are the mean and the median respectively of 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, find correct to one decimal place.
- JAMB 1988 · UME · Q49In the distribution below, the mode and the median respectively are
- JAMB 1987 · UME · Q46Taking the period of daylight on a certain day to be from 5.30 a.m. to 7.00 p.m., calculate the angles (in a pie chart) for the periods of daylight …
- JAMB 1987 · UME · Q47The goals scored by 40 football teams are recorded below. What is the total number of goals scored by all the teams?
- JAMB 1987 · UME · Q48The numbers 3, 2, 8, 5, 7, 12, 9 and 14 are the marks scored by a group of students in a class test. If is the mean and the median, then …
- JAMB 1987 · UME · Q8Peter's weekly wages are ₦20.00 for the first 20 weeks and ₦36.00 for the next 24 weeks. Find his average weekly wage for the remaining 8 weeks …
- JAMB 1986 · UME · Q2If Musa had scored 75 in Biology instead of 57, his average mark in four subjects would have been 60. What was his total mark?
- JAMB 1986 · UME · Q45Of 900 students admitted to a university in 1979, the distribution by state was: Anambra 185, Imo 135, Kaduna 90, Kwara 110, Ondo 155, Oyo 225. …
- JAMB 1986 · UME · Q46Find the median of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119.
- JAMB 1986 · UME · Q50The table gives the scores of a group of students in a Mathematics test. If the mode is and the number of students who scored 4 or less is …
- JAMB 1985 · UME · Q28The number of goals scored by a football team in 20 matches is shown below. What are the mean and the mode respectively?
- JAMB 1985 · UME · Q48In a class of 120 students, 18 of them scored an A grade in Mathematics. If the sector representing the A-grade students on a pie chart has angle …
- JAMB 1984 · UME · Q45The bar chart shows the mark distribution in a class test. Find the number of students in the class.
- JAMB 1984 · UME · Q48The diameters in centimetres of 20 copper spheres are distributed as shown. What is the mean diameter?
- JAMB 1984 · UME · Q7Thirty boys and girls sat for a test. The mean scores of the boys and of the girls were 6 and 8 respectively. Find if the total score …
- JAMB 1984 · UME · Q8The cost of production of an article is made up of labour ₦70, power ₦15, materials ₦30 and miscellaneous ₦5. Find the angle of the sector representing …
- JAMB 1983 · UME · Q1If represents the median and the mode of the measurements 5, 9, 3, 5, 8, then is
- JAMB 1983 · UME · Q12In a class of 60 pupils, the numbers offering Biology, History, French, Geography and Additional Mathematics are shown in the pie chart. How …
- JAMB 1983 · UME · Q17The scores of a set of final-year students in a paper are 41, 29, 55, 21, 47, 70, 70, 40, 43, 56, 73, 23, 50, 50. Find the median of the scores.
- JAMB 1983 · UME · Q27Find the angles of the sectors representing each item in a pie chart of the data 6, 10, 14, 16, 26.
- JAMB 1983 · UME · Q28The scores of 16 students in a Mathematics test are 65, 65, 55, 60, 60, 65, 60, 70, 75, 70, 65, 70, 60, 65, 65, 70. What is the sum of the median …