1. It is reported that the distribution of people’s IQ measured by a popular IQ test has the mean of 100 and standard deviation of 15. Given this information, what is the probability of randomly sampling a person who score

a.100 or higher?

b. Higher than 115?

c. Between 85 and 115?

2.

2. Given the information in question #1, between what two scores can the probability of randomly sampling a person become 95%? (__Hint__: The z-scores corresponding to this probability are __+__ 1.96)

The score will be

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