Question 2 - A-Level Maths

Exam Board	CAIE
Module	S1 (Statistics 1)
Year	2010
Session	June
Topic	Measures of Location and Spread
Type	Construct stem-and-leaf then find median and quartiles

2 The numbers of people travelling on a certain bus at different times of the day are as follows.

Draw a stem-and-leaf diagram to illustrate the information given above.
Find the median, the lower quartile, the upper quartile and the interquartile range.
State, in this case, which of the median and mode is preferable as a measure of central tendency, and why.