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John's test grades are 69, 86, 100, and 105. What is his average?

2 Answers

2 votes
the answer is 90. you add them all up and divide it by 4
User KrustyGString
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Answer: John’s average test score is 90.

Explanation:

To find the average of a set of numbers, we must find the sum of all of the numbers (add them together) and then divide by the amount of numbers in the set. In this case, we begin by finding the sum of the four numbers:

69 + 86 + 100 + 105

= 360

Then, we divide by 4, since there are 4 scores in the data set.

360/4 = 90

Therefore, John’s average test score is 90.

Hope this helps!

User Ali Bdeir
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