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4 January, 08:19

Scores of an IQ test have a bell shaped distribution and a standard deviation of 18. What percent of people have an IQ score between 46 and 154? What percent of people has an IQ score less than 64 or greater than 136? What percent of people has an IQ score greater than 136?

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  1. 4 January, 10:34
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    You are given the scores of an IQ test with a bell shaped distribution and a standard deviation of 18. The percent of people that have an IQ score between 46 and 154 is 60%. The percent of people that has an IQ score less than 64 or greater than 136 is 30%.
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