WorksheetsBasic Probability Practice
Total questions: 25
Worksheet time: 2hrs 53mins
Name
Class
Date
1.
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
a)
5/6
b)
1/2
c)
1/3
d)
1/6
2.
The chart below represents the number of marbles in a jar.
P(green) =
P(green) =
a)
5/19
b)
10/28
c)
5/14
3.
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
a)
3/10
b)
3/9
c)
1/9
d)
1/3
4.
What is the probability of flipping a coin and getting heads?
a)
1/2
b)
1/3
c)
1/4
d)
Never, Tails never fails.
5.
What is the probability of selecting an orange candy?
a)
0%
b)
25%
c)
50%
d)
100%
6.
Determine the likelihood of the following event:
Drawing a red card from a standard deck of cards
Drawing a red card from a standard deck of cards
a)
1/2
b)
13/52
c)
1/4
d)
4/52
7.
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?
a)
3
b)
1/10
c)
3/10
d)
30%
8.
P(not A) =
*Remember to simplify.*
*Remember to simplify.*
a)
6/8
b)
3/4
c)
2/8
d)
1/4
9.
Rolling a 15 on a number cube is
a)
Impossible
b)
Certain
c)
Unlikely
d)
Equally Likely
10.
The probability of it raining today is 30%. What is the probability that it will NOT rain?
a)
30%
b)
70%
c)
100%
d)
0%
11.
What is the probability of rolling a cube and having it land as a six?
a)
1/6
b)
5/6
c)
1/3
d)
1/2
12.
What is the probability of rolling a cube and having land as an odd number?
a)
3/4
b)
1/3
c)
1/2
d)
2/5
13.
What is the probability of spinning the spinner and having it land on RED?
a)
33%
b)
50%
c)
12%
14.
A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?
a)
5/11
b)
5/6
c)
1/3
d)
5
15.
What is the probability that you choose blue? *simplify
5 green
6 yellow
8 blue
7 brown
a)
8/26
b)
4/13
c)
8/25
d)
1/3
16.
What is the probability of spinning a 2 on the spinner?
a)
1/2
b)
1/3
c)
1/8
d)
1/4
17.
A die is rolled. What is the probability that the result is less than 3 ?
a)
1/2
b)
1/3
c)
1/4
d)
1/6
18.
The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”?
a)
2/7
b)
5/49
c)
5/7
d)
10/49
19.
A box has 3 limes, 5 grapes, and 2 oranges.
P (NOT lime)
a)
3/10
b)
30%
c)
7/10
d)
Answer Not Here
20.
What is the probability of spinning red?
a)
0
b)
1/2
c)
3/4
d)
1
21.
What is the probability that the person picked will be a boy given they speak german?
a)
.7273
b)
.4
c)
.16
d)
.22
22.
What is the probability that a female is chosen given they like a Toyota?
a)
.525
b)
.4627
c)
.6774
d)
.3143
23.
What is the probability that they speak French given that they are a girl?
a)
2.14
b)
.24
c)
.4
d)
.8571
24.
What is the probability that a student plays an instrument?
a)
.55
b)
.5
c)
.45
d)
.4
25.
A day in the year is randomly chosen. Given the day is in the month of December, what is the probability the day is the 25th? (December has 31 total days.)
a)
8.5%
b)
8.84%
c)
80.6%
d)
3.2%
100 %
