1)The owner of the gas station thinks that 20% of those that come in to the station to buy gasoline

1)The owner of the gas station thinks that 20% of those that come in to the station to buy gasoline also purchase cigarettes. If you watch 20 cars come in for gas, what is the probability that more than 10 people will purchase cigarettes?2)The owner of the gas station in thinks that 20% of those that come in to the station to buy gasoline also purchase cigarettes. If you watch 20 cars come in for gas, what is the probability that exactly 3 people will purchase cigarettes?3)The local SPCA surveyed 713 pet owners found that 18% owned a pet that was not a cat or dog. What is the standard deviation of owners of non-traditional pet owners? You can assume this is a binomial probability distribution.4) Computer Services reports that 62% of students contact the help desk. If you survey 200 students, what would be the standard deviation of the number of students who contact the help desk.5)You purchase a ticket from the local youth team for $1 and they will be selling 1000 tickets.The prizes are $500 for first place, $100 for second place and $10 for third place.What is the expected value of your ticket?