Compound Probability

A spinner consists of two A’s, three B’s, and three C’s. What is the probability of  spinning a B?

• ²/₈

• ²/₃

• ³/₈

• ¹/₄

A box contains 3 black pens, 7 blue pens, and 5 red pens. Without looking, P(red or black)

• 8/15

• 15/225

• 5/15

• 3/15

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

A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A marble is chosen at random from the jar and replaced. Then a second marble is chosen at random. Find the probability of the first marble being green and the second marble being yellow.

• 4/121

• 8/121

• 3/121

• 6/121

You roll a six sided die. What is the probability of rolling an even number three times in a row? 

• 3/100

• 1/2

• 1/6

• 1/8

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.

• 3/20

• 1/4

• 3/31

• 2/27

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown
What is the probability of selecting a yellow candy, not replacing it, then selecting a green candy?

• 1/5

• 3/19

• 3/95

• 12/380

A compound event is..

• an event that directly causes another

• the probability of all the outcomes

• 1 event that creates 2 results

• when 2 or  more independent events work together

What is the probability you spin an odd number and not yellow?

• 5/18

• 1/9

• 1/3

• 4/9

You draw a marble from a bag that has 4 red, 2 blue, and 3 green, you also flip a fair coin. What is the probability you will draw a blue marble and flip a heads?

• 1/9

• 3/9

• Susan 2

• 5/6