Q31Multiple correct4 Marks25 Feb 2024

The following stem and leaf diagram represents the marks (out of $50$) obtained by $20$ students in an A-level mathematics paper.Based on the given information, select the correct options from the following:

A

There are $9$ students who have scored greater than $20$ marks.

B

The data is bimodal.

C

Mean is greater than the median.

D

Interquartile range is $28$.