Understanding Probability Basics

What is the probability of rolling a 3 on a fair six-sided die?

• 1/2

• 1/4

• 1/6

• 1/3

If a bag contains 3 red balls and 2 blue balls, what is the probability of drawing a red ball?

• 2/5

• 4/5

• 1/2

• 3/5

In a standard deck of 52 playing cards, what is the probability of drawing an Ace?

• 1/52

• 1/13

• 1/26

• 1/4

If you flip a coin twice, what is the probability of getting at least one heads?

• 0.50

• 0.75

• 1.00

• 0.25

A box contains 5 green and 5 yellow marbles. What is the probability of picking a yellow marble?

• 3/4

• 1/2

• 2/5

• 1/3