Higher June 2023 Paper 1 Q12

EdexcelHigherCurrent spec4 marksCumulative Frequency

12 The cumulative frequency graph shows information about the heights, in centimetres, of 50 plants in a flowerbed.

Cumulative frequency graph: cumulative frequency 0 to 50 against height 0 to 60 centimetres; an S-shaped curve from (0, 0) rising to 50 at a height of 60
(a) Use the graph to find an estimate for the median height of these plants. (1)
(b) Use the graph to find the frequency for the class interval \(\;30 \lt \text{Height} \leqslant 40\) (1)
(c) Use the graph to find an estimate for the number of plants with a height greater than 35 centimetres. (2)
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