Probability Quizizz

Sarah rolled a number cube 30 times and recorded the results. She found that she rolled an even number 16 times. What does 16/30 represent?

• theoretical probability

• sample space

• experiment

• experimental probability

The members of the Science Club are Caleb, Ann, Trish, Aisha, DeSean, and Binh. They all draw straws to determine which member will give the demonstration at the science fair. Which simulation could be used to determine the probability that Ann will give the demonstration?

• toss a coin one time

• spin a spinner with 4 equal sections one time

• roll a six-sided number cube one time

• pick a card from 10 cards one time

Ilana drew a marble at random from a bag containing 4 blue, 3 red, 2 yellow, and 5 green marbles. What is the probability that she picked a marble that is NOT red?

• 3/14

• 11/14

• 3/11

• 5/7

Carey has a bag of marbles. There are 4 red marbles, 5 blue marbles, and 1 green marble. She conducted an experiment in which she pulled out one marble and recorded the color and then returned it the bag 50 times. Her results are shown in the table. What is the difference between the theoretical probability and the experimental probability of picking a green marble?

• 1/50

• 1/10

• 2/25

• 1

Vidriana rolled a number cube 96 times. Her results are shown in the table. What is the experimental probability of rolling an even number?

• 46/50

• 48/96

• 50/96

• 42/96

Emily is a very good student. She is more likely to attend class than to miss class. Which of the following probabilities best represents Emily missing class tomorrow?

• -0.4

• 0.1

• 0.7

• 1.2

In the game of bridge, a player's hand contains 13 cards. Kevin was dealt a hand containing 5 spades, 3 hearts, 4 diamonds, and 1 club. Which is the correct probability model for picking one card at random?

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A six-sided number cube is "weighted" so that the numbers do not all have the same probability of landing up. The probability model is shown. If the number cube is tossed once, what is P(number greater than 3)?

• 1/2

• 7/12

• 3/4

• 5/12

The Computer Club at Highlands Middle School has 6th graders, 7th graders, and 8th graders among its 40 members. The probability model for choosing a club member is given. If a club member is chosen at random, what is the probability that he or she will NOT be a 7th grader?

• 7/20

• 13/20

• 23/40

• 0

What is the greatest possible probability in any experiment?

• 9/10

• 1

• 10

• 100