WorksheetsProbability Exam Review
Total questions: 20
Worksheet time: 40mins
A student spins an even number on a spinner and then spins another even number on the second spin. This is a
simple event
compound dependent event
compound independent event
Cassie’s coin purse has 5 nickels, 3 quarters, and two pennies. Without looking, she grabs one coin from her purse, and then without replacing it, she grabs another coin. What are the odds that both coins will be nickels?
2/9
1/2
1/4
A boy chooses a sock from a drawer of socks then chooses a second sock without replacing the first. This is a
simple event
compound dependent event
compound independent event
What is the probability of landing on a star on Spinner 1 and landing on YELLOW or GREEN on Spinner two?
1/15
1/9
2/15
2/9
A student picks a raffle ticket from a box, replaces the ticket, and then picks a second raffle ticket. This is a
simple event
compound dependent event
compound independent event
Naomi and Andrea are playing a game with dice. If she rolls a 2 or a 4 on her next turn, Andrea will win. What are the chances that she rolls a 2 or a 4?
1/3
1/2
1/6
Naomi and Andrea are playing a game with dice. If she rolls a 2 or a 4 on her next turn, Andrea will win.
If Andrea rolled the dice 30 times, how many times would you predict her to land on a 2 or a 4?
15 times
6 times
10 times
Choosing a green or yellow skittle out of a bag of skittles. This is a
simple event
compound dependent event
compound independent event
You draw the numbers 1-10 on index cards and place them in a bag. Each time you pick one number you leave it on the desk and then pick another number. What is the probability you will choose an even number then a 3?
1/18
3/10
1/100
If the probability of a certain event occurring is 5/7, what is the probability of that event NOT occurring?
P(not event) = 3/7
P(not event) = 5/7
P(not event) = 2/7
You pick three marbles out of a bag at the same time. This is a
simple event
compound dependent event
compound independent event
A large box of fruit contains 3 bananas, 4 apples, and 5 oranges. Henry selects two fruits at the same time. What is the probability they will both be apples?
1/9
2/9
1/3
1/4
What is the sample space of flipping 2 coins?
H,T
HH, HT, TT, TH
HT, HT
H, T, H, TT
The tree diagram shows the outcomes of rolling a die and flipping a coin.
How many total outcomes are there?
2
12
36
6
You have a 3 tops, 2 pants and 2 shoes. How many total outfit options are represented?
7 outfits
24 outfits
12 outfits
14 outfits
A basket contains 5 purple balls, 7 blue balls , and 8 red balls. What is the probability of getting purple?
1/4
1/5
5/12
6/7
A basket contains 5 purple balls, 7 blue balls , and 8 red balls. What is the probability of getting blue?
0.25
0.35
0.45
0.50
A basket contains 5 purple balls, 7 blue balls , and 8 red balls. What is the probability of getting purple or blue?
Likely
Unlikely
Certain
Impossible
Predict how many times you would land on a number larger than 3 if you rolled a number cube 1000 times.
200 times
500 times
100 times
250 times
Abby has a a bag of skittles. 4 out of the 10 she ate were red. If she had a bag of 100 skittles, how many would be red?
40
100
25
10
