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According to a marketingwebsite, adults in a certain country average 49 minutes per day on mobile devices this year. Assume that minutes per day on

According to a marketingwebsite, adults in a certain country average 49minutes per day on mobile devices this year. Assume that minutes per day on mobile devices follow the normal distribution and has a standard deviation of 11minutes. Complete parts a through d below.

a.What is the probability that the amount of time spent today on mobile devices by an adult is less than55minutes?

b. What is the probability that the amount of time spent today on mobile devices by an adult is more than 42 minutes?

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