Probability Vocabulary
Ratios
Unit Rates
Probability Percents
Division
100
What is the probability of randomly selecting 1 blue marble from a bag of 4 yellow marbles and 7 red marbles?
What is impossible.
100
Roger is 60 inches tall. Tony is 70 inches tall. What is the ratio of Roger’s height to Tony’s height in simplest form?
What is 6 to 7
100
A class trip consists of 84 students and 6 teachers. How many students per teacher are there? Find the unit rate.
What is 14 students per teacher.
100
Bethany will roll a fair number cube on which each face has a different numeral 1 through 6. What is the probability that she will roll an even number on her first roll? Write your answer as a percent.
What is 16.6 percent.
100
Make 3/4 into a decimal.
What is 0.75
200
Libby flipped a fair coin. What was the probability that the coin will land on tails?
What is "As Likely As Not"
200
20 people auditioned for a play, and 5 people got roles. Write the ratio in simplest form of the number of people who got roles to the number of people who auditioned.
What is 1 to 4
200
Melissa drives 240 miles in 5 hours. What is her average rate of speed? Find the unit rate.
What is 48 miles per hour.
200
If a letter in the word MICHIGAN is randomly selected, what is the probability that the letter selected will be an “I”? Write your answer as a percent.
What is 22.2 percent.
200
Make 3/5 into a decimal.
What is 0.6
300
What is the probability of getting a number on a number cube?
What is "Certain"
300
A train car has 24 seats. There are 12 passengers on the train. Write the ratio of seats to passengers in simplest form.
What is 2 to 1
300
A part time job pays $250 for 10 hours of work. How much money does the job pay per hour? Find the unit rate.
What is $25 per hour.
300
Ryan’s computer is crashing about 1 in every 20 times he uses it. What is the probability the computer will crash next time Ryan uses it? Write your answer as a percent.
What is 5%
300
make 7/9 into a decimal.
What is 0.7 repeating.
400
Ryan’s computer is crashing about 1 in every 20 times he uses it. What is the probability the computer will crash next time Ryan uses it?
What is "unlikely"
400
Julie’s school has 30 sixth-graders and 45 seventh-graders. What is the ratio of sixth-graders to seventh-graders in simplest form?
What is 2 to 3.
400
A factory builds 950 cars in 5 days. What is the average number of cars the factory produces per day? Find the unit rate.
What is 190 cars per day.
400
Mr. Garcia bought 7 red apples and 3 green apples. His shopping bag ripped and 1 apple fell out. What is the probability that the apple that fell out was red? Write your answer as a percent.
What is 70%.
400
Make 5/4 into a decimal
What is 1.25
500
Mr. Garcia bought 10 red apples and 5 green apples. His shopping bag ripped and 1 apple fell out. What are the chances that the apple that fell out was red?
What is "likely"
500
There are 220 calories in 4 crackers. What is the ratio of calories to crackers in simplest form?
What is 54 calories to 1 cracker.
500
How much is the cost per candle if you can purchase 2 for $21? Find the unit rate.
What is $10.50 per candle.
500
Luke’s basketball team won 4 out of 5 basketball games. What is the probability that Luke’s team will win the next game? Write your answer as a percent.
What is 80%.
500
Divide -10 by -2.
What is 5
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