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Six students took a national standardized test for which the average score was 700 and the standard deviation was 150.  If a student’s z-value is 1.75 on the test, what was the student’s score?

Respuesta :

BlueSky06
z-score is calculated through the equation below.
                                           z-score = (x - u) / d
where x is the value, u is the mean or also known as average, and d is the standard deviation.

Substituting the known values to the equation,
                                        1.75 = (x - 700)/150
The value of x is equal to 962.5. Therefore, the student's score is equal to 962.5. 

Answer: d. 963

Step-by-step explanation:

took the test

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