Probability

What is the theoretical probability of picking a vowel from the letters A, B, C, D, and E?

• 2/5
• 2/3
• 1/5
• 25%

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11
• 5/6
• 1/3
• 5

Experimental Probability is:

• What will happen
• What actually happened
• What should happen
• What I think will happen

P(not A) = 

• 6/8
• 3/4
• 2/8
• 1/4

Mrs. Trevino has 3 red pens, 5 pink pens, and 8 blue pens. What is the probability that she will choose a blue pen to grade papers?

• 1/2

• 8

• 3/16

• 16/8

To play a game Benny must spin the spinner shown below. 

          What is the probability that the spinner will land on a number less than 7?

• 7/8

• 3/4

• 8/7

• 0

There are 4 jacks in a standard deck of 52 playing cards. If Peyton selects a card at random, what is the probability that it will be a jack?

• 1/13

• 1/52

• 1/2

• 12/13

The experimental probability that Jonah will catch a fly ball is equal to 7/8. About what percent of the time will Jonah catch a fly ball?

• 55%

• 66%

• 77%

• 88%

Kate spun the spinner 75 times and landed on "3" thirty times.

What is the experimental probability as a percentage?

• 20%

• 30%

• 40%

• 50%

Tammy rolled a die five times.

Here is what she got on her five rolls: 1, 3, 3, 4, & 4

Find the experimental probability:

P(3) =

• 3/5

• 1/6

• 2/5

• 1/3