The days are between 13 and 14 customers returning items

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Reference no: EM13693364

Best Electronics, Inc. offers a "no hassle" returns policy. The number of items returned per day follows the normal distribution. The mean number of customer returns is 10.9 per day and the standard deviation is 2.4 per day.
1.)In what percent of the days are there 7.5 or fewer customers returning items?
2.) In what percent of the days are between 13 and 14 customers returning items?

Reference no: EM13693364

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