Question: The owner of a super market recorded the number of customers who came into his store each hour for one day. The results were 16, 11, 13, 10, 17, 6, 9, 10, 16, 11, and 12. Find the interquartile range.
A ) 6 B ) 10 C ) 15 D ) 9
Steps to derive
1 The interquartile range is the difference between the upper quartile and the lower quartile.
2 Arrange the given data in ascending order 6, 9, 10, 10, 11, 11, 12, 13, 16, 16, 17
