Answered

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* Brittany's teacher tells her that she did well on the Statistics test - her z-score was 1.80 on the test. If the mean score on the test was a 75 with a standard

deviation of 10, find Brittany's score

Sagot :

fichoh

Answer:

93

Step-by-step explanation:

Given that:

Brittany's Zscore = 1.8

Mean score (m) = 75

Standard deviation (s) = 10

Brittany's score (x) =?

Using the Zscore formula :

Zscore = (x - m) / s

1.8 = (x - 75) / 10

18 = x - 75

18 + 75 = x

93 = x

Hence, Brittany's score is 93

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