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WorksheetsCompound Probability
Total questions: 20
Worksheet time: 2hrs 33mins
Name
Class
Date
1.
How do you find compound probability?
a)
Multiply your probabilities
b)
Add your probabilities
c)
Divide your probabilities
d)
Subtract your probabilities
2.
You roll a 2 on a number cube and spin a 3 on a spinner. Is an example of __________ event?
a)
Independent
b)
Depenedent
3.
You choose a King from a deck of cards and get heads in a coin toss. Is an example of __________ event?
a)
Independent
b)
Depenedent
4.
You roll a number cube and get a 6, and roll again if the first roll is a 6. Is an example of __________ event?
a)
Independent
b)
Depenedent
5.
Get an odd number on a spinner and a red marble from a bag of marbles. Is an example of __________ event?
a)
Independent
b)
Depenedent
6.
You choose a class member for your study group, then choose an additional classmate. Is an example of __________ event?
a)
Independent
b)
Depenedent
7.
A number cube is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll?
a)
2/3
b)
5/36
c)
1/9
d)
1/36
8.
Sam is fishing in a new catch and release pond that was just stocked with 3 bluegill, 4 catfish, 7 bass, and 2 carp. He catches a fish, releases it, then catches another. What is the probability that he caught a bluegill, then a carp?
a)
1/40
b)
1/8
c)
3/124
d)
5/16
9.
Cesar's piggy bank has 8 quarters, 2 dimes, 4 nickels, and 6 pennies. He chooses a coin, does not replace it, then chooses another. What is the probability that he chose a dime then a nickel?
a)
1/50
b)
2/95
c)
1/10
d)
4/19
10.
A fruit basket contains
9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit. Kyle randomly chooses a fruit, does not replace it, then chooses another. What is the probably that he chose two pears?
9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit. Kyle randomly chooses a fruit, does not replace it, then chooses another. What is the probably that he chose two pears?
a)
9/49
b)
4/125
c)
1/10
d)
1/30
11.
A cookie jar has 3 dozen chocolate chip, 1 dozen peanut butter, and 2 dozen oatmeal raisin cookies. If Megan chooses a cookie, does not replace it, then chooses another, what is the probability that she chooses a peanut butter then a chocolate chip cookie?
a)
2/3
b)
1/10
c)
6/71
d)
11/72
12.
A letter of the alphabet is chosen at random, then a coin is flipped. What is the probability of choosing a letter from the word MATH then getting tails?
a)
17/26
b)
1/13
c)
5/13
d)
5/26
13.
Lucy has the spinner pictured and spins it twice in a row. What is the probability that she lands on blue first and then on yellow or green?
a)
1 / 16
b)
1 ⁄ 6
c)
1 ⁄ 8
d)
3 ⁄ 4
14.
You roll a six sided die. What is the probability of rolling an even number three times in a row?
a)
3/100
b)
1/2
c)
1/6
d)
1/8
15.
What is the P(A then A) = _____
a)
4/81
b)
2/9
c)
2/7
d)
4/18
16.
What is the P(K then A) = _____
a)
1/9
b)
2/9
c)
2/7
d)
0
17.
What is the P(white, purple) = ___
a)
1/12
b)
7/12
c)
7/5
d)
1/24
18.
What is the P(purple, purple) = ___
a)
16/144
b)
8/144
c)
6/24
d)
6/12
19.
You are at the movies with your friends and decided to buy a small bag of gummy bears. There are 4 red bears, 5 green bears, and 3 yellow bears in the bag. What is the probability that you will get yellow gummy bears and then red gummy bears?
a)
The probability is 3/11
b)
The probability is 1/11
c)
The probability is 3/132
d)
The probability is 3/12
20.
A bag has 3 red, 5 blue, and 2 yellow pieces of candy. What is the probability of drawing a blue piece of candy?
a)
1/2
b)
1/10
c)
3/10
d)
1/3
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