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1 of 8 0-day streak

Compare a numerical variable across groups

DIFFICULTYintrostandardchallengeexam
QUESTION TYPEMix of allChange
Boxplots: 2 groups, comparison 1Boxplots: 2 groups, comparison 2Boxplots: 2 groups, comparison 3Back-to-back measurements, whole-number key, comparison 1Back-to-back measurements, whole-number key, comparison 2Back-to-back measurements, whole-number key, comparison 3Back-to-back measurements, whole-number key, comparison 4Back-to-back measurements, decimal key, comparison 1Back-to-back measurements, decimal key, comparison 2Back-to-back measurements, decimal key, comparison 3Back-to-back measurements, decimal key, comparison 4NOWMix of allRecommended
Question 1 of 8

Calculator allowed

The number of daily library visitors was recorded for the west library and the east library

Group 1: The west library

Group 2: The east library

Parallel boxplots comparing the number of daily library visitors for the west library and the east library, on a shared Daily visitors scale.405060Daily visitors3738465253Group 14344506262Group 2
(a)4 marks

Work out each group's median and interquartile range

(b)1 mark

Which group is centred higher?

(c)1 mark

Which group has more spread in its middle half (IQR)?