Question

The following data represent the number of pop-up advertisements received by 10 families during the past month. Calculate the mean number of advertisements recorded by each family during the month
43 37 35 30 41 23 33 31 16 21

Answer 1

Answer:

31

Step-by-step explanation:

Mean= 43+37+35+30+41+23+33+31+16+21/10 = 310/10 =31

The families receiving more than 31 advertisements are 43, 37, 35, 41, 33.

5 families received more than average no.of advertisements

Answer 2

Answer:

The mean number of the advertisements recorded by each family during the month is found to be 31.

Step-by-step explanation:

The given sample of data representing the number of pop-up advertisements received by 10 families during the past month is as follows:

43, 37, 35, 30, 41, 23, 33, 31, 16, 21

We know that if we know the number of samples along with the values of the sample data, we can find the mean of the data by the following expression:

$\overline x=\frac{sum \ of\ all\ observations}{total\ number\ of\ observations}$

Substituting the given information in this expression, we get:

$\overline x=\frac{43+37+35+30+41+23+33+31+16+21}{10}$

Simplifying it, we get:

$\overline x=\frac{310}{10}$

or we can say:

$\overline x=31$

The mean number of advertisements recorded by each family during the month is found to be 31.