please answer this question this is very important tomorrow is my exam
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Answer:
An average test score is the sum of all the scores on an assessment divided by the number of test-takers. For example, if three students took a test and received scores of 69, 87, and 92, these numbers would be added together and then divided by three to get an average of 82.6.
The average of a set of numbers is simply the sum of the numbers divided by the total number of values in the set. For example, suppose we want the average of 24 , 55 , 17 , 87 and 100 . Simply find the sum of the numbers: 24 + 55 + 17 + 87 + 100 = 283 and divide by 5 to get 56.6 .
Let's say you scored 90 percent on one test, but struggled on the other and got a score of 72 percent. To average the two scores, first add them together: 72 + 90 = 162 percent. Next, divide that result by the number of scores involved (in this case, two) to get the mean value or average: 162 ÷ 2 = 81 percent.