Classical Probability

1. What is the classical probability (in percentage form) of getting a head when flipping a coin?

• 25%

• 30%

• 60%

• 50%

Tags

CCSS.7.SP.C.7A

2. In a jar of gum balls with gum balls of exactly equal size, there are 5 of each color (yellow, green, purple, red). Latoya wants a red gum ball- her favorite. What is the classical probability of her picking one?

• 1/5

• 1/20

• 1/4

• 1/2

Tags

CCSS.7.SP.C.7A

3. A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is white?

• 1/10

• 1/2

• 1/20

• 1/5

Tags

CCSS.7.SP.C.7B

The blood groups of a group of people is distributed as follows: 50 have type A blood, 65 have B blood type, 70 have O blood type and 15 have type AB blood. If a person from this group is selected at random, what is the probability that this person has O blood type?

• 50/150

• 1/5

• 7/200

• 7/20

Tags

CCSS.7.SP.C.7B

5. A die is rolled, find the probability that the number obtained is greater than 4.

• 1/3

• 2/3

• 1/2

• 1/4

Tags

CCSS.7.SP.C.7B

6. A card is drawn at random from a deck of cards. Find the probability of getting the King of hearts.

• 1/15

• 1/5

• 2/13

• 1/13

Tags

CCSS.7.SP.C.7B