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Chapter 2: Q. 37 (page 133)

Use the following information to answer the next six exercises. Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars.

Interquartile range (IQR) = _____ 鈥� _____ = _____

Short Answer

Expert verified

Interquartile range,IQR=2

Step by step solution

01

Given information

From Sixty-five car salespersons, fourteen people answered that they sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars in one week.

02

Explanation

According to the given information, the data is

33333333333333444444444444444444455555555555566666666677777777777

Here we divide all these 65data on a 100scale. We asked to find the IQR of the number of cars sold from the data. Hence we get 25%of the data from the first is 4. Also, we get 75%of the data from the first 6. So,

IQR=6-4=2

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