Question: A refrigerator lifetime is normally distributed for large samples. The average lifetime of a refrigerator is 17 years, with a standard deviation of 2 years.


A refrigerator lifetime is normally distributed for large samples. The average lifetime of a refrigerator is 17 years, with a standard deviation of 2 years. Approximately what percent of refrigerators have a lifetime less than 15 years? 16% O 2.5% 50% O 34%
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