18M.1.SL.TZ1.T_6
In a high school, 160 students completed a questionnaire which asked for the number of people they are following on a social media website. The results were recorded in the following box-and-whisker diagram.
The following incomplete table shows the distribution of the responses from these 160 students.
Write down the mid-interval value for the 100 < x ≤ 150 group.
Markscheme / solution
125 (accept 125.5) (A1)
Examiners’ report
[N/A]