lisbethcabelo555 lisbethcabelo555

14-03-2022
Mathematics

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Sara takes 5 tests.
Her mean score is 62.
She takes another test and her mean score is now 68.
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Work out her score in the sixth test.
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samueladesida43 samueladesida43

24-03-2022

Sara's score in the sixth test is 98.

HOW TO CALCULATE TOTAL FROM MEAN?

The mean of a set of data can be calculated by dividing the total sum by the number of data given.

According to this question, Sara is said to have a mean score of 62 in 5 tests and another mean score of 68 in 6 tests.

First total score = 62 × 5 = 310
Second total score = 68 × 6 = 408

Therefore, Sara's score in the sixth test can be calculated by subtracting 310 from 408 to give 98.

Learn more about mean at: https://brainly.com/question/521501

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