Find the Mean and Range of 18, 23, 10, 39, 22, 17, 16, 15.

Solution:

We will be using the formulas of mean and range to solve this.

Given that 18, 23, 10, 39, 22, 17, 16, 15.

The formula for mean is:

Mean = Sum of terms / No. of terms

The total number of observations = 8.

Mean = 1/8 (18 + 23 + 10 + 39 + 22 + 17 + 16 + 15)

Mean = 160 / 8

Mean = 20

The range is given  by:

R = X(max) - X(min) 

X(max) = 39, X(min) = 10.  

R = 39 - 10

R = 29

Thus, the mean is 20 and the range is 29.

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Find the Mean and Range of 18, 23, 10, 39, 22, 17, 16, 15.

Summary:

The mean is 20, and the range is 29.