The scores on a psychology exam were normally distributed with a mean of 65 and a standard deviation of 6. What is the standard
score for an exam score of 74?
2 answers:
Answer:
<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>
Score = 74 - 65/6
Score = 9/6
Hence
Score is 9/6 or 1.5
Answer:
z = 1.5
Step-by-step explanation:
x - mean
standard score = -----------------
6
Substituting 74 for x, 65 for mean, we get:
74 - 65
standard score = ----------------- = 9/6 = 1.5
6
The pertinent z-score (standard score) is 1.5.
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