You are watching: What is the average (arithmetic mean) of 8, 7, 7, 5, 3, 2, and 2?

*A*, *B*, *C*, *D*, and also *E* are integers such the *A* Explanation:

The median of two numbers have the right to be calculated together the sum of those numbers split by 2. *B* would hence be calculated as (*A *+ *C*)/2, and *D* would be calculated together (*C *+ *E*)/2. To find the mean of those values, you would include them up and divide through 2:

** **

24

12

150

82

Explanation:

The formula for a weighted average is the amount of the weight x values divided by the sum of the weights. Thus, because that the over situation:

Average = (1 x 85 + 1 x 72 + 1 x 81 + 3 x 79 + 5 x 92) / ( 1 + 1 + 1 + 3 + 5)

= 935 / 11 = 85.

5/9

16.4

Explanation:

There are five female cousins whose ages are 14, 22, 13, 12, and 20.

Add these up and divide through 5.

14 + 22 + 13 + 12 +20 = 81

81 / 5 = 16.2

70

85

Explanation:

The mean, or average, score is identified by including up every the scores and then dividing by the total number of tests:

(97+86+67+75+89+95+93+75+81+88) / 10 = 846 / 10 = 84.6

31

See more: Can Solutions Be Separated By Physical Means, Separating Mixtures

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