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WDYE Test Review.notebook
April 14, 2015
WDYE
Grade: 7th
Subject: Probability
Date:
1 A pail contains one blue block, two green blocks, four yellow blocks, and five purple blocks.
What is the theoretical probability of randomly drawing a yellow block?
1
WDYE Test Review.notebook
April 14, 2015
2 A pail contains one blue block, two green blocks, four yellow blocks, and five purple blocks.
How many yellow blocks would you need to add to the original pail in question 1 to make the probability of drawing a yellow block 1/2? P(yellow) = 1/2
3 A pail contains one blue block, two green blocks, four yellow blocks, and five purple blocks.
If you double the number of blue, green, yellow, and purple blocks, does the theoretical probability of drawing remain the same? Explain. (Yes or No because_______________).
2
WDYE Test Review.notebook
April 14, 2015
4 Use the spinner to answer the question.
1
1
2
3
2
2
3
2
3
You spin the spinner. What is the theoretical probability for 1? 5 Use the spinner to answer the question.
1
1
2
3
2
2
3
2
3
You spin the spinner. What is the theoretical probability for 2? 3
WDYE Test Review.notebook
April 14, 2015
6 Use the spinner to answer the question.
1
1
2
3
2
2
3
2
3
You spin the spinner. What is the theoretical probability for 3? 7 Are the possible outcomes 1, 2, and 3 equally likely?
Yes No 4
WDYE Test Review.notebook
April 14, 2015
8 If you spin the spinner 240 times, how many times would you expect to land on 2?
1
1
2
3
2
2
3
2
3
9 A Jelly Belly machine contains pink, white, and orange jelly bellies. The probability of getting a pink jelly belly is 3/4. The probability of getting white is 1/6.
What is the P(orange)?
5
WDYE Test Review.notebook
April 14, 2015
10 A Jelly Belly machine contains pink, white, and orange jelly bellies. The probability of getting a pink jelly belly is 3/4. The probability of getting white is 1/6.
If there are 24 Jelly Bellies in the bag, how many are pink?
11 A Jelly Belly machine contains pink, white, and orange jelly bellies. The probability of getting a pink jelly belly is 3/4. The probability of getting white is 1/6.
If there are 24 Jelly Bellies in the bag, how many are white?
6
WDYE Test Review.notebook
April 14, 2015
12 A Jelly Belly machine contains pink, white, and orange jelly bellies. The probability of getting a pink jelly belly is 3/4. The probability of getting white is 1/6.
If there are 24 Jelly Bellies in the bag, how many are orange?
13 Seneca opens a new restaurant that lets students design their own meals. Students choose items from two categories, one entree and one drink. Draw a tree diagram to display and tell the number of combinations total. How many combinations are there?
Entree
Hot Dog
Pizza
Chicken
Drink
Milk
Juice
Flavored Water
7
WDYE Test Review.notebook
April 14, 2015
14 If the meals are made randomly, what is the theoretical probability that a meal will include a hotdog?
Entree
Hot Dog
Pizza
Chicken
Drink
Milk
Juice
Flavored Water
15 If the meals are made randomly, what is the theoretical probability that a meal having pizza and juice?
Entree
Hot Dog
Pizza
Chicken
Drink
Milk
Juice
Flavored Water
8
WDYE Test Review.notebook
April 14, 2015
16 Carolyn has created a new game called Matching Sports. To play the game a player spins each spinner once, if the player gets the same sport on both spinners then they win.
Baseball
Soccer
Soccer
Baseball
Basketball
Football
Football
Basketball
What is the probability of winning the game by getting soccer on both?
17 What is the probability of winning the game by getting basketball on both spinners?
Baseball
Soccer
Soccer
Baseball
Basketball
Football
Football
Basketball
9
WDYE Test Review.notebook
April 14, 2015
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