Probability Quiz

Select all the events that have a probability of 0.

• Choosing a red block from a bag with 9 white blocks and 1 red block.

• Rolling a 6, three times in a row, on a standard number cube.

• Rolling a 7 on a standard number cube.

• Opening a 400-page book to exactly page 231.

• Opening a 400-page book with a page number greater than 450.

A textbook has 428 pages numbered in order starting with 1. You flip to a random page in the book in a way that is equally likely to stop at any of the pages. What is the sample space for this experiment?

• The first page.

• The page I open to.

• Pages 1-428.

• The pages I do not flip to.

What is the probability that you turn to page 45 in a textbook that has 428 pages numbered in order starting with 1, assuming you flip to a random page in the book in a way that is equally likely to stop at any of the pages?

• 45/100

• 45/428

• 1/428

• 50/50

What is the probability that you turn to an even-numbered page in a textbook that has 428 pages numbered in order starting with 1, assuming you flip to a random page in the book in a way that is equally likely to stop at any of the pages?

• 50%

• 20%

• 0%

• 42%

If you repeat the experiment of flipping to a random page in a textbook that has 428 pages numbered in order starting with 1, 50 times, about how many times do you expect you will turn to an even-numbered page?

• 50

• 1

• 214

• 428

Estimate the probability of getting a green marble from a bag of 50 marbles, given the following data: Andre takes out a marble, records its color, and puts it back in. In 4 trials, he gets a green marble 1 time. Jada takes out a marble, records its color, and puts it back in. In 12 trials, she gets a green marble 5 times. Noah takes out a marble, records its color, and puts it back in. In 9 trials, he gets a green marble 3 times. Explain your reasoning.

• 9/25

• 50%

• 25/9

• 5/12

List the sample space for selecting a letter at random from the word "PINEAPPLE."

• 9

• 1/9

• A-Z

• P,I,N,E,A,P,L,E

A letter is randomly selected from the word "PINEAPPLE." Which is more likely, selecting "E" or selecting "P"?

• E

• P

• Neither

• Equally Likely

The basketball coach says that based on Noah’s free throws this season, Noah has a 3/4 probability of making each free throw. Select all the ways Noah could accurately simulate the number of free throws he will make in his next 6 attempts.

• Flip a coin 6 times. Count the number of heads.

• Make a spinner with 6 equally sized sections, labeled with the numbers 1 through 6. Spin the spinner 6 times and count how many times the spinner lands on 3 or 4.

• Put 3 red chips and 1 white chip in a bag. Draw a chip from the bag, record the result, and put it back in the bag. Do this 6 times and count the number of red chips drawn.

• Make a spinner with 4 equally sized sections. Color three sections green and one section red. Spin the spinner 6 times and count the number of times the spinner lands on green.

• Put the numbers 1 through 6 in a bag. Pick a number from the bag.