JAMB 2001 · UME · Q41

The histogram shows the distribution of passengers in taxis of a certain motor park. How many taxis have more than 4 passengers?

0.52.54.56.58.510.512.52468No. of taxisNo. of passengers
Worked solution (try it first)
  1. The class boundaries 0.5, 2.5, 4.5, … mean the classes are 1–2, 3–4, 5–6, 7–8, 9–10 and 11–12 passengers.
  2. More than 4 passengers means the bars from 4.5 upwards, with heights 7, 5, 4 and 1.
  3. Add them: 7+5+4+1=177 + 5 + 4 + 1 = 17 taxis, option D.

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