Find the range and IQR of the data.

allhvasstH 2021-01-28 Answered
Find the range and IQR of the data.
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Expert Answer

ottcomn
Answered 2021-01-29 Author has 97 answers

Calculation:
Range:
It is the difference between the maximum and the minimum values is termed as range.
Range =maxmin
Here the maximum value is 180 and the minimum value is 120.
Range =maxmin
=180120=$60
Thus, the range is $60.
Inter quartile range:
In contrast to the range, which measures only differences between the extremes, the inter quartile range (also called mid spread) is the difference between the third quartile and the first quartile. Thus, it measures the variation in the middle 50 percent ofjthe data and unlike the range it is not affected by extreme values. IQR=Q3Q1.
Substitute Q1, as 125 and Q3 as 155 in the above formula,
IQR=155125=$30
Thus, the IQR for the cost of compact refrigerators is $30.

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