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?
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Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.
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