Math, asked by tarshsingh7114, 1 year ago

What should be the score of test 6 to make an average score of 75? Test1 score -> 52 Test2 score -> 70 Test3 score -> 92 Test4score -> 90 Test5 Score -> 60 Test6 Score -> ?

Answers

Answered by UMP28
10

Here is the answer.... Hope it will be helpful to you!

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Answered by santy2
3

Answer:

The score for test 6 to make an average of 75 in the given set of data is 86.

Step-by-step explanation:

Average score or mean is given by the following formula:

  A = S/N

Average/mean (A) = Total sum of data (S) / The number of terms in the data (N)

⇒The Average (A) of the data is = 75

⇒Total sum of the data is the total of the score in the six tests:

Test 1 + test 2 + test 3 + test 4 + test 5 + test 6

  =     52  +  70  +  92   +  90  +   60 + test 6

  =   (52  +  70  +  92   +  90  +   60) + test 6

  =          364    +   test 6

Therefore the sum of the data set (S) = 364 + test 6

The total number of data in the set ( N) = 6

We can substitute and find score for test 6

               A = S/N

               75 = (364 + test 6)/6

Cross multiply the above equation

   75 ×  6  = 364 + test 6

   450 = 364 + test 6

   Test 6 = 450 - 364

   Test 6 = 86

Therefore the score for test 6 = 86

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