Mathematics, 17.01.2020 22:31 neariah24
The distribution of weights of united states pennies is approximately normal with a mean of 2.5 grams and a standard deviation of 0.03 grams. a. what is the probability that a randomly chosen penny weights less than 2.4 grams? b. describe the sampling distribution of the mean weight of 10 randomly chosen pennies. c. what is the probability that the mean weight of 10 pennies is less than 2.4 grams? d. sketch the two distributions (population and sampling) on the same scale. e. could you estimate the probabilities from (a) and (c) if the weights of the pennies had a skewed distribution?
Answers: 2
Mathematics, 21.06.2019 17:30, rosie20052019
One positive number is 9 more than twice another. if their product is 95, find the numbers
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Mathematics, 22.06.2019 01:20, Hockeypro1127
The bottom of a slide at the playground is 6 feet from the base of the play set. the length of the slide is 10 feet. how tall is the slide. 11.66 feet 10 feet 6 feet 8 feet
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