A personal computer is used at home for work, communication, personal finances, education, and entertainment.Suppose that the average number of hours a household personal computer is used for entertainment is three hours per day.Assume the times for entertainment arenormally distributedand the standard deviation for the times is 0.5 hours.

Find the probability that a household personal computer is used for entertainment more than 3.25 hours per day.

Find the probability that a household personal computer is used for entertainment between 1.8 and 3.25 hours per day.

Find the probability that a household personal computer is used for entertainment between 3.25 and 3.75 hours per day.