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Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 19 . Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 81 and 119? (b) What percentage of people has an IQ score less than 81 or greater than 119? (c) What percentage of people has an IQ score greater than 119 ?

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Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 19 . Use the empirical rule to determine the following. (a) What percentage of people has an IQ score between 81 and 119? (b) What percentage of people has an IQ score less than 81 or greater than 119? (c) What percentage of people has an IQ score greater than 119 ?
TopicAll Topics
SubjectStatistics
ClassClass 11