Sample Size
Theoretical Probability
Making Predictions
Experimental Probability
Review
100
Andre has a spinner with 3 equal sections labeled 1–3 and a game piece with 9 sides labeled 1–9. He spins the spinner and rolls the game piece and multiplies the results together. Which is the greatest outcome that is possible?
27
100
Ted has 2 cans of tomato soup, 1 can of chicken soup, and 1 can of vegetable soup. He picks 1 can without looking. What is the probability he picks a can of tomato soup?
1/2
100
If you spin the spinner 7 times, what is the best prediction possible for the number of times it will land on green?
6
100
Each morning, Ashley randomly picks a pen from her desk. At the end of the day, she returns the pen to her desk. The graph shows the colors of pens she picked for the last 30 days.
What is the experimental probability that she will pick a green pen next?
0.2
100
A coordinate grid is shown.
What are the coordinates of point H?
(3,1)
200
Vanessa is going to put these 3 plants on a windowsill.
How many different arrangements can she make if the shortest plant must be placed in the middle?
2
200
A game has 40 cards. Of those cards, 2 cards are special. What is the probability, as a percent, of picking a special card?
5%
200
If you flip two coins 84 times, what is the best prediction possible for the number of times both coins will land on heads?
21
200
A boy records how many cars of each color enter a parking lot.
What is the experimental probability that a car entering the parking lot is black?
2/9
200
What is 17% written in decimal form?
0.17
300
Ray spins a spinner once and flips a penny twice.
How many outcomes are possible?
16
300
A teacher randomly picks prizes for a game. She has 12 pens, 6 bracelets, and 7 puzzles for prizes. What is the probability, as a decimal, that the first prize the teacher will pick is a bracelet?
0.24
300
The spinner shown has 5 equal sections.The table shows the results of 100 spins.
Based on the results, which outcome has a relative frequency that is less than the expected result?
Green
300
Jake chooses a card from a stack of 180 cards and then puts it back. He does this 150 times. He chooses a blue card 3 out of 5 times. How many blue cards are likely in the stack?
108
300
What is the least common multiple of 5, 12, and 15?
60
400
A store sells blue, white, green, and black T‐shirts. The sizes of the T‐shirts are small, medium, and large. How many different T‐shirt options does the store offer?
12
400
A box contains marbles.
- 1 red marble
- 3 green marbles
- 2 white marbles
- 3 blue marbles
What is the probability of randomly pulling a white marble out of the box?
2 out of 9
400
If you spin the spinner 18,000 times, what is the best prediction possible for the number of times it will not land on blue?
15,000
400
A school has 2 lunch sessions. In the first session, 30 out of 250 students bought chocolate milk. The second lunch session has 300 students. Based on the first lunch session, how many students are likely to buy chocolate milk?
36
400
Mary is baking a carrot cake. The recipe requires 2 cups of flour for every 1 1/2 cups of sugar. Mary uses 3 cups of flour. What is the number of cups of sugar Mary needs to add?
2 1/4
500
A dentist has 1 toothbrush of each color in a box and 1 cup of each color in a different box.
The dentist lets a child choose 1 toothbrush and 1 cup. How many combinations of 1 toothbrush and 1 cup are possible?
24
500
Blake has a deck of cards with 26 red cards and 26 black cards. He removes 1 red card and 2 black cards from the deck. Blake then picks 1 card from the deck. What is the probability that he picks a black card?
24/49
500
Darrin tosses a coin 20 times. It lands heads up 13 times. How does Darrin’s result compare to the theoretical probability of a coin landing heads up?
It is more than the theoretical probability.
500
Tina has 12 cards in a bag. She randomly picks a card, records the type of card, and puts the card back into the bag. She does this 15 times.
Experiment Results:
Letter picked 10 times
Number picked 3 times
Picture picked 2 times
Based on the results in the table, how many letter cards are in the bag?
8
500
Simplify.
14.5 − 6.2 × 4 ÷ 8 + 5.5
16.9