MATHEMATICS · Multi-part · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation
Problem
Two sections, A and B, of Class 9 were asked how many hours they spend on outdoor sports during a week. Their responses are summarised below.
Hours : 1 2 3 4 5
Frequency (A) : 2 6 8 4 0
Frequency (B) : 3 4 5 5 3
(a) For Section A, calculate the median weekly time spent on outdoor sports.
(b) For Section B, calculate the median weekly time spent on outdoor sports.
(c) Compare the median values obtained in parts (a) and (b). Which section, on average, devotes more time to outdoor sports? Justify your answer briefly.