1.A club is hosting a raffle to raise money.I buy one of 400 raffle tickets for $10.There is one prize, which is a free 3-credit course valued at $700 probability distribution for this raffle and calculate my expected value of buying a single ticket.

A club is hosting a raffle to raise money which offers cash prizes.I buy one of 6000 raffle tickets for $1.The club officials will randomly select one grand prize worth $3000, two second prizes worth $700 each, and three third prizes at $350 each. probability distribution for this raffle and calculate my expected value of buying a single ticket