Question

The following data points represent the number of hours each of the staff members at Daniel's Department Store slept on Thanksgiving night.
Sort the data from least to greatest.

Find the interquartile range (IQR) of the data set.

Answer 1

Sort the data into this order:

2.6, 3, 4.9, 5, 5, 6, 6, 7.9, 8, 8.2

^

there are 10 data points in total, therefore the Interquartile Range = between the 5th and the 6th numbers, which are 5 and 6

(5+6)/2= 5.5