Question

Find the mean of the following sample data set: {75, 65, 100, 80, 85, 75, 100}

A) 81
B) 82
C) 83
D) 84

Answer 1

The mean of the data set {75, 65, 100, 80, 85, 75, 100} is 83.

Step-by-step explanation:

To find the mean of a data set, you add up all the values and then divide by the number of values.

In this case, the data set is {75, 65, 100, 80, 85, 75, 100}. So, the mean is (75 + 65 + 100 + 80 + 85 + 75 + 100) / 7 = 580 / 7 = 82.857. Rounded to the nearest whole number, the mean is 83.

Therefore, the correct answer is C) 83.