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adults have IQ scores that are normally distributed with a mean of 100 and a standard...

adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15
a. what IQ score respresents the 95th percentile?
b. what IQ score represents the 50th percentile?

show how you got the answer step by step, clearly just trying to check my work thanks !

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