Find the range and IQR of the data.

allhvasstH

allhvasstH

Answered question

2021-01-28

Find the range and IQR of the data.

Answer & Explanation

ottcomn

ottcomn

Skilled2021-01-29Added 97 answers

Calculation:
Range:
Range is the phrase used to describe the difference between the maximum and minimum values.
Range =maxmin
Here, 120 is the lowest value and 180 is the highest.
Range =maxmin
=180120=$60
Therefore, the range is $60.
Inter quartile range:
The inter quartile range (also known as mid spread) is the difference between the third and the first quartile, as opposed to the range, which only accounts for differences between extremes. 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
Hence, the IQR for the cost of compact refrigerators is $30.

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