Quiz

Probability quiz

Probabilities can be written as fractions, decimals, or percentages. They must be between 0 and 1 when written as decimals.

Choose difficulty

Pick how hard you want the quiz to be. The answer choices are in the question section below.

Difficulty

Read each question, then choose one answer.

Question 1

A card is chosen from cards numbered 1 to 20. What is the probability of choosing a multiple of 3?

Outcome count

Successful cards	6
Total cards	20

Choose one answer

6146201420320

Question 2

A bus is late on 6 out of 30 school days. Estimate the probability that it is late on a randomly chosen school day.

Bus punctuality

Late days	6
School days	30

Choose one answer

2430624306630

Question 3

A probability is 0. Which likelihood word best describes it?

Probability scale

0 impossible0.5 even chance1 certain

Probability = 0

Choose one answer

Even chanceImpossibleLikelyCertain

Question 4

A probability is 0.75. Which likelihood word best describes it?

Probability scale

0 impossible0.5 even chance1 certain

Probability = 0.75

Choose one answer

CertainLikelyEven chanceImpossible

Question 5

A promotion has probability 0.25 of being used by a customer. Out of 120 customers, how many would you expect to use it?

Expected frequency

Probability	0.25
Customers	120

Choose one answer

90 customers120 customers25 customers30 customers

Question 6

A promotion has probability 0.15 of being used by a customer. Out of 200 customers, how many would you expect to use it?

Expected frequency

Probability	0.15
Customers	200

Choose one answer

30 customers170 customers200 customers15 customers