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i need help solving this Homework: Homework 03-02 Question 5, 3.2.31 Part 1 of 3 > Scores of an IQ test have a bell-shaped distribution

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Homework: Homework 03-02 Question 5, 3.2.31 Part 1 of 3 > Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 20. Use the empirical rule to determine the following (a) What percentage of people has an IQ score between 80 and 120? (6) What percentage of people has an IQ score less than 40 or greater than 1607 (c) What percentage of people has an IQ score greater than 160? (a) % (Type an integer or a decimal)

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