Question 5
The heights of 10 students in a class are given as follows:
120, 125, 110, 128, 130, 135, 140, 145, 142 and 120.
(a) range;
(b) interquartile range;
(c) mean.
Observation
The Chief Examiner reported that majority of the candidates’ who attempted the question were able to get the value of the range and the mean correctly but had problem determining the interquartile range.
