WAEC 2021 · Paper 1 · Q40

Height (cm)	160	161	162	163	164	165
No. of players	4	6	3	7	8	9

The table shows the heights of 37 players of a basketball team. Calculate, correct to one decimal place, the mean height of the players.

Worked solution (try it first)

Multiply each height by its number of players: $640 + 966 + 486 + 1141 + 1312 + 1485 = 6030$ .
Divide by the 37 players: $\frac{6030}{37} = 162.97$ .
To one decimal place the mean is 163.0 cm, option A.