Probability Review

Probability is defined as the number of ​ (a)   number of outcomes divided by the ​ (b)   number of outcomes.

• desired
• total

Probability is measured between the numbers ​ (a)   and ​ (b)   .

• 0
• 1
• 100
• 50
• 10

James had to guess a chosen number between 1 and 10. What is the chance that he'll pick the correct number?

Put your answer in a fraction. Don't reduce.

Mathematical Equivalence

ON

During an experiment, the frequency (number of times) of spinning the colors above are 7 for blue, 8 for yellow, 12 for red, and 13 for green. What is the experimental probability of spinning green?

Put your answer in a fraction. Don't reduce.

What are the outcomes of rolling a die?

1, ​ (a)   , ​ (b)   , ​ (c)   , ​ (d)   , and ​ (e)   .

• 2
• 3
• 4
• 5
• 6

A spinner has 6 sections: 2 blue, 1 red, and 3 yellow. What is the probability of landing in the blue section?

Put your answer in a fraction. Don't reduce.

Mathematical Equivalence

ON

Bob spun two spinners, both numbered 1 - 3, and then added the numbers he spun. What's the probability that his sum was 5?

Mathematical Equivalence

ON

On the spinner, the chance of landing on red is (a)   .

• equally likely
• likely
• unlikely

There is a 1 in 20 chance of having the winning raffle ticket. What is this chance in a percent?

Mike flipped a coin and then rolled a die. What is the probability that he does NOT get heads and an even number?

Put your answer in a fraction. Don't reduce.