drawing a head in one toss, is tossed 10 times.

a) What is the probability of getting exactly one

head?

b) What is the probability of getting at least two

heads?

11) A math club consisting of 14 people decided

to chose at random a board of four people:

president, vice president, treasurer and secretary.

a) What is the probability that the president will be

Esther, the vice president –Chana, the treasurer –

Rivka, and the secretary – Sarah?

b) [Challenge Question] What is the probability that

the board will consist of Esther, Chana, Rivka and

Sarah?

12) In a card game with 36 cards (deck consists

of aces, 6s, 7s, 8s, 9s 10s, jacks, queens and kings-

4 of each) find the probability that in a “hand’ of 12

cards there will be exactly four kings.