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Mathematics, 13.12.2019 04:31 meganm9889

Asample of 2,000 people was asked how many cups of coffee they drink in the morning. five hundred people said they do not drink coffee, eight hundred people said they drink one cup, six hundred said they drink two cups and one hundred said they drink three cups of coffee in the morning.
a. determine the expected number of cups of coffee consumed each morning. (round to two decimal places)
b. determine the standard deviation for this sample. (round to two decimal places)

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