Question 1 - A-Level Maths

Exam Board	OCR MEI
Module	S1 (Statistics 1)
Year	2012
Session	January
Topic	Measures of Location and Spread
Type	Construct stem-and-leaf then find median and quartiles

1 The mean daily maximum temperatures at a research station over a 12-month period, measured to the nearest degree Celsius, are given below.

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
8	15	25	29	31	31	34	36	34	26	15	8

Construct a sorted stem and leaf diagram to represent these data, taking stem values of \(0,10 , \ldots\).
Write down the median of these data.
The mean of these data is 24.3 . Would the mean or the median be a better measure of central tendency of the data? Briefly explain your answer.