You are told that the grades on a standardized statistics test are normally distributed with a mean of 79 and a standard deviation of 5. What is the relative score (ie, z score) of someone with a grade of 91?     a. 2.40   b. none of these   c. 2.30   d. 2.58   e. 1.20

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You are told that the grades on a standardized statistics test are normally distributed with a mean of 79 and a standard deviation of 5.

What is the relative score (ie, z score) of someone with a grade of 91?

 

  a.

2.40

  b.

none of these

  c.

2.30

  d.

2.58

  e.

1.20

 
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