What is the probability that 13 rolls of a fair die will show three sixes?

a) 0.42760

b) .04280

c) .21380

d).1069

In a game, you have a 1/49 chanceof winning $120, and 48/49 probability of losing $4.

What is your expected winning?

a) -$1.47

b) -$3.92

c) $2.45

d) $6.37

The number of cartoons watched by Mrs. Kelly's first grade class on Saturday morning is shown below:

x P(x)

0 0.15

1 0.20

2 0.30

3 0.10

4 0.20

5 0.05

Find the probability that a student watches at most two cartoons.