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02-02-2018
Mathematics

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According to the manufacturer, the average proportion of red candies in a package is 20%. an 8 oz. package contains about 250 candies. what's the probability that a randomly selected 8 oz. bag contains less than 45 red candies?

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Аноним Аноним

10-02-2018

normalcdf(-10,000, 0.18, 0.20, 0.025) = ~ 0.212

-10,000 is our lower boundary. 0.18 is the upper boundary, which represents 45/250 red candies. 0.20 is the sample mean, which is the same as the population proportion. 0.025 is the standard deviation of the sample proportion.

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