Experimental Probability Answers

Marnie conducted an experiment using a bag of 12 marbles containing an equal number of blue, red, and green marbles. She randomly chose one marble, noted the color, and returned the marble to the bag. Marnie did this for a total of 20 trials. The table below shows the results.EventCountBlue7Red8Green5 What was the experimental probability of choosing a blue marble from a bag?

Lonnie threw 50 free throws and missed 16 of them. If Lonnie throws 75 free throws, what can be predicted about the number she will make successfully?

A soap factory randomly inspects 100 bars of soap to better identify problems that occur during the manufacturing process. The table below displays the possible problems and frequency for each.Soap ProblemsFrequencyUnderweight4Impurities2Broken bar3None91Total100If the soap factory makes 5,000 bars of soap per day, how many of those bars would they expect to be broken?

During an experiment, a spinner landed on red 6 times. If the resulting experimental probability of the spinner landing on red is , how many trials were performed?

A producer of electronic book readers is performing a quality check to ensure the reader’s backlight is working correctly. The plant manager tests 2,000 readers on Monday and finds that 8 have defective backlights. The fraction is the experimental probability of a book reader having a defective backlight. What is the value of x?

A number cube was rolled as part of an experiment. The results are displayed in the table below. Number123456Frequency465735What is the best explanation of how to find the experimental probability of rolling a 3?

Shana lives in a town with a population of 130,000. Standing outside the largest grocery store, Shana surveyed people to find out how many have cats. Of the people she asked, 106 people had cats and 694 did not. How many cat owners are predicted to live in the town?

Marcus performed an experiment by spinning a spinner a set number of times and noting the color on which the spinner landed. The table below shows the results.ResultFrequencyBlue4Red3Green5Yellow6What is the experimental probability for the lowest frequency?

Before a chair manufacturer sells its beanbag chairs, they spot check a random sample of chairs on the production line. The table below shows the number of common problems found during one such spot check. Common ProblemsFrequencyOpen seam4Cuts in upholstery14Understuffed15None267Total300If the manufacturer makes 1500 beanbag chairs per day, how many of those chairs would they expect to be understuffed?

Jason practiced making soccer goals and kept track of the results. He missed 3 goals but made 9 in one practice session. What can Jason predict regarding goals made if his next practice session has 24 tries?