mayesshirley35 mayesshirley35

19-11-2022
Mathematics

contestada

Weight of pennies.

The distribution of weights of United States pennies is approximately normal with a mean of 2.4 grams and a standard deviation of
0.04 grams.

What is the probability that a randomly chosen penny weighs less than 2.4 grams? 6%

What is the probability that the mean weight of 15 pennies is less than 2.4 grams?

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