Mathematics 0580 · IGCSE · Averages and measures of spread
Averages and measures of spread — practice question
The heights of 140 basketball players are collected, and the results are displayed in the table.
Height $h$ (cm): $160 < h \leq 180$, $180 < h \leq 185$, $185 < h \leq 190$, $190 < h \leq 200$, $200 < h \leq 210$
Frequencies: $7, 12, 31, 70, 20$.
(a)[4]
Calculate an estimate for the mean height.
(b)[2]
Two players are picked at random.
Find the probability that both players have a height greater than $190\text{ cm}$ and no more than $200\text{ cm}$.
(c)[3]
Complete the histogram so that it displays the information in the frequency table.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Either $192$ or $192.4\ldots$” …