Math, asked by Raji8216, 9 months ago

Danielle has the following test scores in math: 77, 82, 91, and 99. On her fifth test, she scored an 82. Which of the following is true about Danielle's test scores after scoring an 82 on her last test?

Answers

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Answered by amitnrw
1

Given :  Danielle   test scores in math: 77, 82, 91, and 99. . On her fifth test, she scored an 82.

To find :  Impact on her average test score

Solution:

Danielle Score in 4 test

77 , 82 , 91  & 99

Total Score = 77 + 82 + 91 + 99  =  349

Average Score in 4 Test = 349/4  = 87.25

On her fifth test, she scored an 82

as her Score is less than average score hence her average will be reduced

Total Score ion 5 tests = 349 + 82  = 431

Total Tests = 5

Average Score = 431/5

= 86.2

Reduction in average score = 87.25  -86.2  = 1.05

Danielle's average score reduced by  1.05

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