Question

opts Question 9 Monthly electricity bills for Duke Energy customers in South Carolina are normally distributed with a mean of $134.26 and a standard deviation of $18.82. 1. What proportion of all Duke Energy customers will pay between $100 and $150 for their electricity bill next month? and 0.7985 II. According to the Empirical Rule, 68% of all Duke Energy customers will pay between $77.30 • for their electricity bill next month? $153.08

Answer 1

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I) = 0.7641

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II) = 115.44 and 153.08