Mathematics, 15.06.2021 14:30 AM28
The turnover of the two stores A and B is normally distributed and has the same number of variances. Today, the data for 12 business days are established respectively. The average turnover of the two stores A and B is 11.1, the selling margin standard is 1.5, and the B store The average turnover of is 7.8 and the standard deviation is 2.0. What is the interval of 99%?
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The turnover of the two stores A and B is normally distributed and has the same number of variances....
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