herb has sold 82, 29, 109, and 79 copies in the last four months, respectively. How many copies will he need to sell this month (s) to maintain average of at least 75 sales per month.

Answers

Using the mean concept, it is found that he needs to sell at least 76 copies this month to maintain average of at least 75 sales per month.

What is the mean?

The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.

In this problem, there are 5 observations, given as follows:

82, 29, 109, 79 and x.

In which x is the number of copies sold this month.

The average is of at least 75, hence:

(82 + 29 + 109 + 79 + x)/5 = 75

299 + x = 75 x 5

x = 375 – 299

x = 76.

He needs to sell at least 76 copies this month to maintain average of at least 75 sales per month.

meanconcept, it is found that he needs to sellat least 76 copiesthis month to maintain average of at least 75 sales per month.## What is the mean?

meanof a data-set is given by thesum of all observations in the data-set divided by the number of observations.5 observations, given as follows:averageis of at least75, hence:at least 76 copiesthis month to maintain average of at least 75 sales per month.mean of a data-setat https://brainly.com/question/24628525