Fundamental Counting Probability

Jack will roll two number cubes labeled 1 to 6. What is the probability that Jack will roll a sum greater than 5?

• 2/9

• 5/18

• 13/18

• 7/9

• 1/8

• 1/6

• 1/4

• 1/2

• Ben will roll an even number about 250 times if the number cube is rolled 500 times.

• Ben will roll an even number about 220 times if the number cube is rolled 500 times.

• Ben will roll an even number about 700 times if the number cube is rolled 1,000 times.

• Ben will roll an even number about 560 times if the number cube is rolled 1,000 times.

You pick a marble from this bag.

What is the probability you will choose either a black or white marble?

• 3/5

• 9/100

• 1/10

• 2/5

What is the probability of selecting a prime number from the set {2, 3, 4, 5, 6, 7, 8, 9}?

What is the probability of drawing a red card from a standard deck of 52 playing cards?

A bookshelf contains 6 fiction books, 2 non-fiction books, and 1 picture book. A book is chosen at random. What is the likelihood of choosing a fiction book?

• Impossible

• Not very likely

• Likely

• Certain

Dylan has 12 purple, 7 orange, 10 yellow, 3 blue, and 6 black marbles in a bag. Without looking, he reaches into the bag and pulls out a marble. What color marble is Dylan least likely to pull out of the bag?

• Purple

• Orange

• Blue

• Yellow

Mary has a number cube, labeled 1 through 6. She rolled it 300 times and recorded each result. How many times should she expect to roll a number less than 5?

• 100

• 1

• 200

• 250

5. Maddie flipped a coin 150 times. How many times could Maddie expect the coin to land on tails?

• 25

• 50

• 75

• 100