Venn Diagrams
Multiplication Rule
Tree Diagrams/ Area Models
Compound Probability
Types of Probability
100
In a group of 96 people, 19 were drinking punch and 23 were eating fish. 10 were drinking punch and eating fish. What is the probability of randomly selecting someone that was just eating fish?
13/96
100
John rolled a die twice what is the probability of rolling an odd number on the first roll and a 2 on the second roll?
3/6* 1/6= 3/36=1/12= 0.83333
100
You have 1 die, you roll a 4. The probability for rolling a 4 is...
1/6
100
What is the probability of having an outcome with an even number if you roll a 3 sided die twice?
5/9
100
There are 2 red marbles in a jar filled with 8 marbles.
Theoretical
200
In a group of 72 people, 50 are married and 35 are female and 20 females are married. What is the probability of randomly selecting someone that is married or female?
50/72 + 35/72 - 20/72 = 65/72
200
Reggie rolled a die 2 times. What is the probability that he rolled a 6 on the first roll, and a 5 on the second roll?
1/6 x 1/6 = 1/36
200
A spinner is equally divided into 8 sections. The sections are 1, triangle, 4, triangle, 3, rhombus, 5, circle. Spin a 3, the probability is...
1/8
200
What is the probability of having an outcome greater than 7 if you roll a 6-sided die twice?
15/36
200
There is a 70% chance of snow tomorrow!!!
Subjective
300
In a group of 52 students, 35 have brown eyes and 21 have hazel eyes and 13 have both. Find the probability that a student picked from this group neither has brown or hazel eyes.
52- (35/52-13/52)+(21/52-13/52)+ 13/52= 9/52
300
Henry has 3 green polos and 6 red polos. With replacement, what is the probability that he takes 1 green polo and 1 red polo out of his closet without looking?
3/9 x 6/9 = 18/81
300
What is the probability you flip at least two heads? (3 coin flips)
3/8
300
In a carnival game you need to spin a spinner and get a marble from a jar. You have a spinner that has red, blue and green. You have a jar that has purple, red, green and yellow marbles. What is the probability of having an outcome with a red?
6/12=1/2
300
Tuna picked 3 tuna treats in a bag filled with 10 tuna,10 chicken and 10 turkey treats.
Empirical/Experimental
400
In a deck of cards (52 cards) what is the probability of picking a 9 or a spade? * HINT: There are 4 different suits (hearts, spades, clubs and diamonds) that have each of the types of cards King, Queen, Jack, Ace and 1-9.
4/52 + 13/52 - 1/52 = 16/52
400
Mike has 2 black hats, 1 green hat, and 5 red hats. If he randomly pulls out two hats one after the other without replacement, what is the probability he pulls out two red hats?
5/8 x 4/7 = 20/56
400
What is the probability you flip exactly two tails? (in 3 coin flips)
2/8=1/4
400
To play a carnival game you need to spin a spinner and pick a popsicle stick out of a bag. The spinner has a 3/5 probability of landing on red, a 1/5 probability of landing on blue and a 1/5 probability of landing on yellow. You have a 2/10 chance of picking a red popsicle, a 4/10 chance of getting a purple popsicle, a 3/10 chance of getting a yellow popsicle and a 1/10 chance of getting a green popsicle. What is the probability of getting an outcome with the same colors?
0.18=18/100=9/50
400
There is a 90% chance of Tuna eating tuna for dinner.
Subjective
500
There are 105 students at a football game. 32 people there are boys and 40 are seniors. 10 of the boys are seniors. What is the probability of randomly selecting a boy or a senior?
32/105 + 40/105 - 10/105 = 62/105
500
6 blue, 7 green, 9 brown, and 15 yellow M&Ms are placed in a bucket. The probability of pulling out a yellow M&M is
5/8 x 4/7 = 20/56
500
If you roll a die twice, what is the probability the total is 6 or less?
15/36
500
You have to pick a meal from the lunchbag. You can pick from 3 pb and j sandwiches, 2 tuna sandwiches, 4 turkey and 1 chicken salad sandwich. Then, you can choose between 4 sprites, 2 cokes and 2 waters. What is the probability of picking a meal with a coke?
1/4
500
You flipped a coin 20 times and landed on heads 4 times.
Empirical.
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