Mastering Probability Concepts

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

• 2/3

• 1/4

• 1/6

• 1/2

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

• 4/5

• 3/5

• 2/5

• 1/2

What is the complementary probability of not rolling a 5 on a fair die?

• 3/6

• 1/6

• 2/3

• 1/2

In a standard deck of 52 cards, what is the probability of drawing a heart?

• 1/4

• 1/5

• 1/2

• 1/3

If you flip a coin, what is the probability of getting tails?

• 1/3

• 3/4

• 1/2

• 1/4

What is the probability of drawing an ace from a standard deck of cards?

• 1/52

• 1/13

• 1/10

• 1/26

If the probability of rain tomorrow is 0.3, what is the probability that it will not rain?

• 0.1

• 0.5

• 0.9

• 0.7

In a class of 30 students, if 18 are girls, what is the probability of randomly selecting a boy?

• 1/3

• 3/5

• 4/5

• 2/5

What is the probability of rolling a sum of 7 with two six-sided dice?

• 1/4

• 1/8

• 1/12

• 1/6

If you have a 60% chance of passing a test, what is the probability of failing?

• 50%

• 70%

• 30%

• 40%