(Answered) Iq scores have a mean of 100 and a standard deviation of 16

Statistics

IQ scores have a mean of 100 and a standard deviation of 16. Albert Einstein reportedly had an IQ of 160.

a. What is the difference between Einsteins IQ and the mean?

b. How many standard deviations is that?

c. Convert Einstein's IQ score to a z score.

d. If we consider "usual IQ scores to be those that convert z scores between -2 and 2, is Einstein's IQ usual or unusual?

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