SOLUTION: if the mean number of hours of television watch by teenagers per week is 12 with a standard deviation of 2 hours what proportion of teenagers what 16 to 18 hours of TV a week? (Ass

Question 877504: if the mean number of hours of television watch by teenagers per week is 12 with a standard deviation of 2 hours what proportion of teenagers what 16 to 18 hours of TV a week? (Assume a normal distribution.)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Find the zscores of 16 and 18.

So then,

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