How Much You Have Learned In Probability?

A bag contains 4 blue marbles, 6 red marbles, 10 yellow marbles and 6 green marbles. What is the probability of not drawing a red marble?

• 6/26

• 3/13

• 2/13

• 10/13

Use the diagram below to determine if the following statement is true or false. The probability of someone liking neither horses nor cows is 4/25.

• True

• False

Determine the probability of spinning a green on the following spinner:

• 1/8

• 1/6

• 1/4

• 2/8

There are 20 marbles in a bag, 4 blue, 4 green, 4 red, 4 white and 4 black.  Remember that all fraction answers should be given in the simplest form. What is the probability of drawing a blue marble?

• 1/20

• 4/20

• 4/5

• 1/5

There are 20 marbles in a bag, 4 blue, 4 green, 4 red, 4 white and 4 black.  Remember that all fraction answers should be given in the simplest form. What is the probability of drawing a black or white marble?

• 2/3

• 8/12

• 8/20

• 2/5

If you have a standard deck of cards (52 cards) what is the probability of drawing the Queen of Hearts?

• 1/51

• 51/1

• 52/1

• 1/52

If a month is picked at random, what is the probability that the month will start with M?

• 1/12

• 1/6

• 2/6

• 4/12

A spinner that is numbered 1-7 is used for a game. What is the probability that a 5 will be spun?

• 1/6

• 1/5

• 1/7

• 5/7

A card game has 25 red cards, 25 green cards, 25 yellow cards, 25 blue cards, and 8 wild cards. What is the probability that the first card dealt is a wild card?

• 8/100

• 4/25

• 2/27

• 4/27

For his garden, Clay has a mixture of 12 white corn seeds, 24 yellow corn seeds, and 16 bi-color corn seeds. If he reaches for a seed without looking, what is the probability that Clay will  plant a bi-color corn seed first?

• 4/13

• 1/13

• 6/13

• 4/52

Suppose that you have a bag containing 3 red jelly beans, 4 green jelly beans, 5 yellow jelly beans, and 1 black jelly bean.  If you pick one jelly bean from the bag at random, what is the probability that the bean will be yellow?

Suppose that you have a bag containing 3 red jelly beans, 4 green jelly beans, 5 yellow jelly beans, and 1 black jelly bean. If you pick one jelly bean, what is the probability that it will be either red or green?

In a survey of 100 students about their favorite pizza topping, 25 chose pineapple. According to these results, if a student is picked at random at the school, what is the chance that the student prefers pineapple as a pizza topping?

• 1 out of 4

• 1 out of 25

Ben and Lily are going to roll a number cube one time to see who will start a game. Which of the following IS a fair way to decide who will go first?

• If a 1, 4 or 6 is rolled, Ben will go first. If a 2,3 or 5 is rolled, Lily will go first.

• If the number rolled is less than 3, Ben will go first. If the number rolled is greater than 3, Lily will go first.

The probability of rolling a 6 on a regular number cube is 1/6. If Jacob tosses a number cube 48 times, how many times would he expect to roll a 6?

• 8

• 6

A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number LESS THAN 2.

• 1/6

• 1/3