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Suppose that IQ scores have a bell-shaped distribution with a mean of 96 and a standard...
Suppose that IQ scores have a bell-shaped distribution with a mean of 96 and a standard deviation of 12. Using the empirical rule, what percentage of IQ scores are less than 120? Please do not round your answer.
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Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a...
Scores of an IQ test have a bell-shaped distribution with a
mean of
100
and a standard deviation of
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Use the empirical rule to determine the following.
(a) What percentage of people has an IQ score between
80
and
120
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mean of 100
and a standard deviation of 20.
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(a) What percentage of people has an IQ score between 40 and
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