CAIE S1 2008 June — Question 1

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2008
SessionJune
TopicMeasures of Location and Spread
TypeFind median and quartiles from stem-and-leaf diagram

1 The stem-and-leaf diagram below represents data collected for the number of hits on an internet site on each day in March 2007. There is one missing value, denoted by \(x\).
00156
1135668
2112344489
31222\(x\)89
425679
Key: 1 | 5 represents 15 hits
  1. Find the median and lower quartile for the number of hits each day.
  2. The interquartile range is 19 . Find the value of \(x\).