13 A coin with a coming up heads 0.65 if you flipped the coins 50 times what is the probability it will come up heads 25 or fewer times. (Give answer to at least 3 decimal places). (relevant section)

25, Each year an insurance company writes policies for new licensed drivers. If 40% of these drivers are low risk drivers, 40% are moderate risk and 20% are high risk.the company can not determine which gropes each driver falls in when they write the policies. So, none of the low rick drivers will have an at fault accident in the next year however 10% of the moderate driver and 20% of the high-risk drivers will have an accident. If there is an as fault accident in the next year, what is the probability that that individual is a high risk.