Normal curve, what score to be in the top 25%?

FratBro23
Category:
Statistics
Price: $10 USD

Question description

A psychologist has been studying delayed recall of certain words using a new memory measure.  On this measure, she has found that the distribution follows a normal curve.  The memory test has a mean of 12 words recalled and a standard deviation of 3.5.  Using a normal curve table, what score on the memory measure would a person need to have to be in the top 25%?

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(Top Tutor) Daniel C.
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