Cedric's earnings for six weeks are shown. $143, $175, $112, $146, $152, $119 Which is the interquartile range of Cedric's earnings for the six weeks?

Question

Francis Moyer

Mathematics

7 October, 13:45

Cedric's earnings for six weeks are shown. $143, $175, $112, $146, $152, $119 Which is the interquartile range of Cedric's earnings for the six weeks?

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Answers (1)

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Ashly Ellis · Answer 1

To find the interquartile range you will list the data in order from least to greatest.

Find the median (marked with the | - it is not one of the numbers).

Look at the left half the data and find the middle - lower quartile (underlined) and look at the right half of the data and find the middle - upper quartile

112, 119, 143, | 146, 152, 175

The distance from 119 to 152 is the IQR. Subtract them to find the value,

152 - 119 = 33

The IQR is 33.