Probability Vocabulary
Calculate The Odds
Opposite Events
100

A wallet contains 15 twenty-dollar bills. Without looking what vocabulary word describes the probability of selecting a twenty-dollar bill?

100% - Certain

100

A bag contains 13 red marbles, 8 blue marbles, and 2 purple marbles. Calculate the probability that a blue marble is selected. Round to the nearest whole percentage. 

35%

100

The odds of a basketball player making a free throw is 73%. What are the odds that he misses a free throw?

27%

200

A wallet contains 3 twenty-dollar bills and 15 five-dollar bills. Without looking which vocabulary word describes the probability of selecting a twenty-dollar bill?

Unlikely 

200

Using a standard deck of cards, what would be the probability, round to the nearest whole number, of selecting a 9 or a 3?

8/52

.153

15%

200

The chances of winning a carnival game is 7/25, what are the chances of not winning the game?


18/25 = .72 = 72%

300

Ruby has a bag of candy full of 17 strawberry chews and 3 cherry chews that she eats one at a time. Which word or phrase describes the probability that she reaches in without looking and pulls out a pineapple chew?

0% - Impossible

300

A spinner has 15 equal sections. 4 of the sections are blue, 1 is white, 3 are green, 7 are red.

a) What is the probability of the spinner landing on a blue section?

b) Which color has the highest odds of being landed on? 

a) 27%

b) Red - Has the most sections

300

Think about flipping a coin. What are the only two outcomes? What is the probability of each outcome? What are the two outcomes opposite events?

The coin lands on either heads or tails.

Landing on heads = 50% , Landing on tails = 50%

Because the probabilities add up to 100%

400

Juan's school is selling 100 raffle-tickets to raise money for a new gymnasium. The grand-prize is a ten-speed mountain bike. Which word or phrase describes the probability that he will win the raffle if he buys 95 tickets?

Likely

500

Reaching into a bag full of 10 strawberry chews and 10 cherry chews without looking and pulling out a strawberry chew.

50% - Equally Likely