2.

In the past year, a veteranarian finds that 35% of the animals she treats are cats.

Assuming the pets are brought to the Vet randomly, what is the probability that exactly 2 of the next 5 animals brought in will be cats?

In the box below, give your answer computed to 4 decimal places.

3.Data for the last year shows that 28% of shoppers will use the Self Checkout at WalMart.

In a random sample of 8 customers, what is the probability that exactly 4 of them will use the Self-Checkout?

In the box below, give your answer computed to 4 decimal places.

4.Data for the last year shows that 28% of shoppers will use the "Self Checkout" at WalMart.

a)In random samples of 50 WalMart shoppers, what is the mean number who use Self Checkout?

b)What is the standard deviation?

5.Patty O'Furniture is running for office to be President of Clover Village. Recent polls suggest that 78% of residents supprt her candidacy.

What is the probability that, of the next 10 voters, exactly 8 plan to vote for Patty?

In the box below, give your answer computed to 4 decimal places.

6.Patty (from the last screen), wants to check her support with a random sample of people her campaign calls on the telephone. They plan to call 4 random voters.

What is the probability that AT LEAST 2 of the voters they contact plan to vote for Patty?

Which expression here shows how to compute this probability?

A)P(2) X P(3) X P(4)

B)P(0) + P(1) + P(2)

C)P(2) + P(3) + P(4)

D)P(3) + P(4)

8.Nancy shuffles a deck of cards and deals out the first 6 cards.

In the 6 cards she deals - 5 are red!

According to her friend Bob, the probability of this is given by:

`_{6}C_{5}\cdot\left(.5 ight)^{5}\left(.5 ight)^{1}=0.09375`

Is Bob's work correct? Defend your side!