Assessment 13: Probability

A block has 3 red sides, 2 green sides, 1 blue side, and 3 yellow sides. What is the probability that when the block is rolled it will land red side up?

• 1/5

• 1/6

• 2/5

• 1/3

Karis has a bag of coins. The bag contains 25 gold, 15 silver, 5 cooper, and 5 platinum coins. She picks a coin at random from the bag. What is the probability that she picked a gold or a platinum?

• 20%

• 60%

• 50%

• 30%

Mattison’s piggy bank contains 6 dimes, 8 nickels, 12 pennies, and 3 quarters. What is the probability that a coin drawn at random is not a quarter?

• 3/29

• 23/29

• 12/29

• 26/29

If the arrow for the spinner is spun once, what is the probability that it will land on a section numbered 1 or 5?

• 1/6

• 2/6

• 4/6

• 5/6

Max has 4 pairs of pants: black, khaki, brown, and blue; and 5 shirts: yellow, red, blue, white, and green. He does not care which colors he wears together. If Max chooses one pair of pants and one shirt at random, what is the probability that his outfit will be the khaki pants with the white shirt?

• 1/12

• 1/5

• 1/20

• 1/4

Two containers each contain the following M&Ms: 2 red, 1 yellow, 4 green, 3 brown, and 2 blue pieces. If one M&M will be randomly selected from each box, what is the probability that both pieces will be red?

• 1/36

• 1/22

• 1/16

• 1/4

Leylanee rolls a fair number cube numbered 1 to 6 and tosses a fair coin. Which expression could be used to determine the probability that she rolls an odd number and tosses a “heads”?

• 1/3 x 1/2

• 1/6 x 1/2

• 1/2 x 1/2

• 1/2+1/2

Spinner A and Spinner B below are each to be spun once. If the pointer CANNOT land on a line, how many different outcomes of a number and a color are possible?

• 18

• 15

• 20

• 25

A box contains 3 pens, 2 markers, and 1 highlighter. Olivia selects one item at random and does not return it to the box. She then selects a second item at random. What is the probability that Olivia selects 1 highlighter and then 1 marker?

• 2/42

• 5/36

• 2/30

• 6/36

Clarice is doing a probability experiment. She has a bag containing marbles of different colors. The probability of selecting each color of marble is given in the table. What is the probability that Clarice randomly selects a blue marble, replaces the marble, and then randomly selects a yellow?

• 5/128

• 1/4

• 7/16

• 1/32