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Mathematics 12 Online
OpenStudy (anonymous):

A survey reports that children between the age of and 5 watch an average of 25 hours of television per peek. Assume the variable is normally distributed and the standard deviation is 3 hours. if 20 children between the age of 2 and 5 are selected at random, find the probability that the mean of the number of hours they watch television will be greater than 26.3 hours. Please explain to be how to use central limit theorem please !

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