7. Data and Probability

Compound Events — Quiz

Test your understanding of compound events with 5 practice questions.

Practice Questions

Question 1

A bag contains 5 red, 3 blue, and 2 green marbles. If you draw two marbles without replacement, what is the probability that the first marble is blue and the second marble is green?

Question 2

A spinner has 6 equally sized sections numbered 1 through 6. You spin the spinner twice. What is the probability of spinning an odd number on the first spin and a number greater than 4 on the second spin?

Question 3

A deck of 20 cards contains 8 red cards and 12 blue cards. If you draw two cards with replacement, what is the probability that both cards are blue?

Question 4

In a class of 25 students, 15 are boys and 10 are girls. If two students are randomly selected to present a project, and the first student selected is not replaced, what is the probability that the first student is a boy and the second student is also a boy?

Question 5

A bag contains 7 red and 3 green apples. You pick an apple, eat it, and then pick another. What is the probability that you pick a red apple then a green apple?