Mathematics, 06.11.2020 05:20 kaitlan225

The average number of milligrams of sodium in a certain brand of low-salt microwave frozen dinners is 660 mg and the standard deviation is 35 mg. Assume the variable is normally distributed. If a sample of 15 dinners is selected, find the probability that the mean of the sample will be between 645 and 675 mg.

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