Mastering Probability in Mathematics

A single six-sided die is rolled. What is the probability of rolling a number greater than 4?

• 1/6

• 1/3

• 1/2

• 2/3

What is the probability of flipping a fair coin and getting heads three times in a row?

• 1/2

• 1/4

• 1/8

• 1/16

In a bag of red and blue marbles, the probability of picking a red marble is 1/5. If there are 15 blue marbles, how many red marbles are there?

• 3

• 4

• 5

• 6

A card is drawn at random from a standard deck of 52 playing cards. What is the probability that the card is a queen or a king?

• 1/26

• 1/13

• 2/13

• 1/6

If a jar contains 2 green, 3 red, and 5 blue marbles, what is the probability of drawing a green marble?

• 1/10

• 1/5

• 2/5

• 2/10

A bag contains 4 white, 5 black, and 6 red balls. Two balls are drawn at random. What is the probability that both are red?

• 1/7

• 3/7

• 15/91

• 5/14

A spinner has 8 equal sections numbered from 1 to 8. What is the probability that the spinner will land on an even number?

• 1/2

• 1/4

• 3/8

• 1/8

What is the probability of selecting a prime number from the numbers 1 to 20?

• 1/4

• 2/5

• 1/2

• 4/10

In a class of 30 students, 18 play football and 10 play basketball. 5 students play both sports. What is the probability that a student chosen at random plays neither sport?

• 1/6

• 1/3

• 1/2

• 2/3

An urn contains 10 balls: 4 green, 3 blue, and 3 red. If two balls are drawn one after the other without replacement, what is the probability that both balls are the same color?

• 1/15

• 1/12

• 5/18

• 1/9