Quiz 4 (5.8 - 5.10)

A bag contains 2 blue marbles, 3 black marbles, and 5 red marbles. If Ms. Newton pulls two marbles without replacement, what is the probability of picking a blue and then a red marble? 

• 1/9
• 1/5
• 1/10
• 2/5

A die is rolled. What is the probability that the result is less than 3 ?

• 1/2
• 1/3
• 1/4
• 1/6

If two dice are rolled, what is the probability of rolling doubles? (two of the same number)

• 1/6

• 6/32

• 12/36

• 1/36

If two dice are rolled, what is the probability of NOT rolling doubles?

• 1/6

• 24/36

• 5/6

• 32/36

The complement of an event is the probability of....

• the event happening twice

• the event only happening once

• the event not happening

• the event happening at least one time

The probability of a simple event is...

• the likelihood of one event occurring

• the probability of an event with only one outcome

• how likely something is to happen only one time

If two events A and B are INDEPENDENT....

• the result of A happening DOES NOT change the probability of B occuring

• A and B have the same chance of happening

• If A happens, B will also happen

• the result of A happening will change the probability of B occuring

If two events A and B are DEPENDENT....

• the result of A happening DOES NOT change the probability of B occuring

• A and B have the same chance of happening

• If A happens, B will also happen

• the result of A happening will change the probability of B occuring

P(Pants | sandals) =

• 4/20

• 6/15

• 1/2

• 2/7

What is the probability a passenger on the Titanic surviving given they are in first class?

• .2855

• .6246

• .0922

• .3230