5. Statistics and Probability

Probability Basics — Quiz

Test your understanding of probability basics with 5 practice questions.

Practice Questions

Question 1

In a class of 40 students, 15 students play soccer, 10 students play basketball, and 5 students play both. What is the probability that a randomly selected student plays soccer or basketball?

Question 2

A bag contains 4 red balls, 3 blue balls, and 5 green balls. What is the probability of randomly selecting a blue ball?

Question 3

If the probability of event A occurring is $0.6$, what is the probability of event A not occurring?

Question 4

A standard deck of 52 playing cards has 4 suits. If you draw one card, what is the probability of drawing a heart?

Question 5

In a box of 20 chocolates, 5 are dark chocolate, 7 are milk chocolate, and 8 are white chocolate. What is the probability of picking a milk chocolate?