Cindy Noble

2022-10-08

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

a. What is the difference between Einstein's 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?

a. What is the difference between Einstein's 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?

Radman76

Beginner2022-10-09Added 7 answers

a) Difference $=160-100=60$

b) No of Standard deviations $=\frac{60}{16}=3.75$

c) z score $=3.75$

d) Yes, this is unusual because z score is greater than 2

b) No of Standard deviations $=\frac{60}{16}=3.75$

c) z score $=3.75$

d) Yes, this is unusual because z score is greater than 2

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