The mean of 9 sales was recorded as $47.50.

One sales slip is missing and the remaining 8 were

$32.53, $12.78, $43.61, $52.16, $36.75, $40.56, $41.78, $42.15.

Find the value of the missing slip

Solution: We have that

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Stats Solution Summary

The use of descriptive statistics can be crucial at the time of understanding the basic distributional properties of a distribution