The amount of time spent by American adults playing sports per day is normally distributed with a mean of 4 hours and standard deviation of 1.25 hours.Find the probability that if four American adults are randomly selected,their average number of hours spent playing sports is more than 5 hours per day.

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The Answer of The amount of time spent by American adults playing sports per day is normally distributed with a mean of 4 hours and standard deviation of 1.25 hours.Find the probability that if four American adults are randomly selected,their average number of hours spent playing sports is more than 5 hours per day.

The Amount of Time Spent by American Adults Playing Sports