Likelihood
Experimental Probability
Predicting with Experimental Probability
Theoretical Probability
Predicting with Theoretical Probability
100
There are 10 cards each labeled with a different number 1 through 10. Tell whether the event is impossible, unlikely, as likely as not, likely or certain.
A card is picked at random from the 10 cards, and the card is a 7.
Unlikely
100
Juan rolls a number cube 40 times. He rolls a 3 on the number cube 6 times. What is the experimental probability that he rolls a 3? Express your answer as a percent.
15%
100
Professor Burger found that the experimental probability of his making a strike in bowling is 2/10. Out of 100 throws, about how many could he predict would be strikes?
20
100
What is the probability of spinning a 1? Express you answer as a percent.
25%
100
How many 1's would you expect in 200 spins?
50
200
There are 10 cards each labeled with a different number 1 through 10. Tell whether the event is impossible, unlikely, as likely as not, likely or certain.
A card is picked at random from the 10 cards, and the card is greater than 2.
Likely
200
Jordan performed an experiment using a number cube. He rolled a number cube 50 times. He found that he rolled a 6 a total of 8 times. What is the experimental probability that he did not roll a 6? Express your answer as a decimal.
0.84
200
Jabrin was tossing a ball up in the air and catching it. He found that in 50 tries, he could catch it 45 times. He is going to do this 33 more times. Predict how many times Jabrin will catch the ball out of these 33 tosses.
Approximately 30
200
A radio station plays a variety of music to attract as large an audience as possible. Each hour it plays 6 classic rock songs, 4 country songs, 5 pop songs, and 5 rap songs. What is the probability that the first song played will be a country song written as a percent?
20%
200
The probability of Jan’s school bus running late is 3/8 . In 168 days of riding the bus, how many times can Jan expect it to be late?
63
300
Likely
300
Sophia randomly selects a marble from a bag of marbles and then replaces it. The results of 300 trials are shown. Based on this data set, what is the experimental probability of selecting a red marble from the bag? Write your answer as a percentage.
19%
300
Steven tossed a coin 100 times. It came up heads 52 times and tails 48 times. Based on this sample, predict how many times heads would occur if Steven tossed the coin 1,000 times.
520
300
What is the probability of drawing a tile that is not a b? Express your answer as a fraction.
6/9 or 2/3
300
If you roll a number cube 20 times, about how many times do you expect to roll a number greater than 3?
10 times
400
A gumball machine contains 50 gumballs. There are 25 blue, 10 red, 12 green, and 3 yellow gumballs in the machine. Bart puts a coin in and turns the wheel to receive a gumball. What event would be as likely as not to occur?
P ( Blue ) or P ( Not Blue )
400
Diego has a spinner that is divided into four sections labeled A, B, C, and D as shown. He spins the spinner many times and records the results. The results are shown in the table.
What was the experimental probability that the spinner landed on D. Express your answer as a decimal.
0.1875
400
Diego has a spinner that is divided into four sections labeled A, B, C, and D as shown. He spins the spinner 64 times and records the results. The results are shown in the table.
How many times should Diego expect the spinner to land on B if it was spun 200 times?
75 times
400
Without looking, Luke picks necklace beads from a bag of 52 beads. Half the beads are rough. The other half are smooth. There are 13 red beads, 13 blue beads, 13 green beads, and 13 black beads.
What is the theoretical probability of selecting a smooth bead? Express your answer as a percent.
50%
400
Leah has 10 red cards, 20 black cards, 20 yellow cards, and 25 white cards in a bag. She randomly selects a card 300 times. She replaces the card after each selection. Predict how often Leah will select a white card.
100
500
Give a number to describe the following likelihoods:
1. Certain
2. Likely
3. As Likely As Not
4. Unlikely
5. Impossible
Answers will vary.
500
Asia has a jar of marbles. She randomly selects a marble from the jar, records its color, and returns it to the jar. Her results are shown in the table.
What is the experimental probability of not choosing blue? Express your answer as a fraction.
54/74
500
The table shows the blood types of the last 300 people to donate blood at a blood bank. Use this information to answer each question.
If 50 people donate blood on Friday, how many can be expected to have type O blood?
24 people
500
Chase can spin a spinner centered on Board 1 or Board 2. He wants the spinner to land on a section labeled “R.” Which board should he choose? Explain.
It doesn't matter. Both boards have a 25% chance of landing on R.
500
Liliana spins a spinner with equal-sized sections numbered 1 through 4. She spins the spinner a total of 300 times. Predict the number of times she can expect to spin a 3.
75