with clear solution, please

1- A lottery ticket costs $1.00 and a total of 2,250, '[HJO tickets were sold. The prizes and their frequencies are given in the following table. Prin- NumbL-r nfl'rins $250 000 1 sm _ Determine the expected winnings of each ticket. 2- Of 20 people invited to a pool party, 4 prefer vanilla ice cream, 7" prefer chocolate, and 3 prefer strawberry. The host surveys six of these people at random to determine how much ice cream to buy. a) What is the probability that at least 3 of the people surveyed prefer chocolate ice cream? '3) What is the probability that none prefer vanilla ice cream? (2) What is the expected number of people who prefer strawberry ice cream