Probability Pre-Algebra

What is the experimental probability of rolling a 6?

Kyleigh saw 10 blue, 8 red, and 42 white cars drive by her house in 1 hour. What is the experimental probability that the next car the drives by her house will not be a white car?

• .5

• .6

• .3

• .7

A restaurant surveys customers with the following results: 8 pizzas, 12 hamburgers, 14 pastas, and 6 steaks. What is the experimental probability of pizza or steak?

P(pizza or steak)

• 20%

• 65%

• 50%

• 35%

The experimental probability that an SUV will pass by Ariel's store is 0.4. If 500 cars pass by Ariel's store, how many can she expect to be SUVs?

• 200

• 100

• 20

• 150

Rylee is on a weekend fishing trip with her family. So far she has caught 4 trout, 10 catfish, and 13 bluegill. What is the probability that the next fish that Rylee catches will be a catfish?

• 37%

• 15%

• 48%

• 38%

Ivan flipped a coin 30 times. He got tails 18 times. How many times should he expect to get tails if he flips 60 times?

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%

Based on the results shown in the table, how many white marbles would one expect to draw in a total of 50 draws? (hint:set up a proportion)

• 2

• 5

• 10

• 20

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