Sample Spaces and Probability

What is sample space?

• All of the Outcomes

• What Will Happen

• What Can Happen

• What I want to Happen

Classical probability uses sample spaces to compute probabilities.

• True

• False

In classical probability, all outcomes in the sample space are equally likely.

• True

• False

The probability that an event happens is 0.42.  What is the probability that the event won't happen?

• -0.42

• 0

• 0.58

• 1

How many outcomes are there with tossing a coin and rolling a dice?

• 2

• 6

• 12

• 24

Which of the following situations is represented by this tree diagram?

• 3 shirt options, 6 pants options, and 12 shoe options

• 3 shirt options, 2 pants options, and 2 shoe options

• 2 shirt options, 3 pants options, and 1 shoe option

Which shows the sample space for flipping two coins?

• H, T

• HH, HT, TH, TT

• HH, TT

• Dime, Nickel

Classify each pair of events as dependent or independent. 
Roll a number cube. Then toss a coin.

• Independent

• Dependent

Two marbles are drawn from a container in such a way that the first marble drawn is replaced before selecting the second marble. Does the outcome of the first draw affect the outcome of the second?

• Yes

• No

There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?

• 2/5

• 1/21

• 4/25

• 1/7