Review Probability

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

If I spin 35 times, how many times would I land on yellow? *Hint: Set up a proportion.

While standing outside of the school waiting to go home, you notice that 3 out of every 12 students leaving school are on their cell phones.  What is the probability that the next student leaving school will NOT be on his or her cell phone?

• 25%

• 30%

• 75%

• 70%

If the spinner is spun 80 times, how many times would it land on yellow? (hint:set up a proportion)

• 10

• 20

• 30

• 40

Sara has a bag of coins. The bag contains 8 quarters, 10 dimes, 4 nickels, and 2 pennies. She will randomly select a coin from the bag. What is he probability that Sara will select a nickel?

• 1/12

• 1/3

• 1/6

• 1/5

P(not A) = 

• 6/8

• 3/4

• 2/8

• 1/4

Shannon has a bag of jelly beans. She removed on jelly bean, recording the color, and then replaced it. She repeated the process several times and record her results in the table. What is the experimental probability of her selecting a red jelly bean?

• 11/33

• 1/3

• 11/44

• 18/26

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 brown candy? Write in simplest form. 

• 2/18

• 1/9

• 2/20

• 1/10

A spinner has 8 sections: 2 purple, 2 yellow, 3 blue, and 1 red.
What is the probability of spinning and landing on a color that is not yellow?

• P(not yellow) = 6/8

• P(not yellow) = 2/8

• P(not yellow) = 6

What is the probability of spinning and landing on a blue or purple section?

• P(blue or purple) = 2/8

• P(blue or purple) = 3

• P(blue or purple) = 5/8