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16 Nov 2021
Given information
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.
Step-by-step explanation
Step 1.
Interquartile range (IQR) denotes the middle of the data set. It is defined as the difference between third quartile and first quartile.
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