My dad has also become quite interested in blackjack since retiring from his electrical engineer- ing job at Texas Instruments. Based on his historical data, in a random hour of blackjack play, his earnings are normally distributed with mean $130 and SD $90. a. What is the probability he'll lose money in a random hour of play? (WISE, VIZ )b. Looking at hourly earnings can be silly if you tend to play for many hours per day. Suppose my dad plans to play for 8 hours each day. Find the distribution that models his daily earnings and how much money he'd have to win or lose to be among the worst 1% of days possible. (WISE, VIZ c. Discuss any assumptions you made in your answer to part b and whether you think they are justified.