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Question

Suppose that IQ scores have a bell-shaped distribution with a mean of 95
95
and a standard deviation of 18
18
. Using the empirical rule, what percentage of IQ scores are at least 149
149
? Please do not round your answer.
8 years ago

Answers

Scott
149 - 95 = 54 ... 54 / 18 = 3

what percentage of values is at least 3 standard deviations above the mean?
8 years ago
Janelle
Answer: 15%
6 years ago
liz
99.7%
3 years ago

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