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Probability

Total questions: 34

Worksheet time: 2hrs 42mins

Name
Class
Date
1.

The likelihood of an event happening is _________.

a)

percentage

b)

probability

c)

parallel

d)

predictions

2.
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
3.

What is the probability of spinning green? Be sure to simplify your answer.

a)

0

b)

1/4

c)

1/2

d)

3/4

4.
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%
5.
The outcome of one event does not influence the outcome of the other event
a)
independent event
b)
tree diagram
c)
simple event
d)
odds
6.
Clara picks a marble at random, puts it back, and then picks another marble at random.
a)
Dependent
b)
Independent
7.
What is the probability of tossing a coin four times and getting tails each time?
a)
1/16
b)
1/8
c)
1/2
d)
1/4
8.
A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent?
a)
Independent
b)
Dependent
9.
A jar contains 2 green marbles, 4 blue marbles, 3 yellow marbles, and 2 black marbles. A marble is chosen at random from the jar and replaced. Then a second marble is chosen at random. Find the probability of the first marble being green and the second marble being yellow. 
a)
4/121
b)
8/121
c)
3/121
d)
6/121
10.
There are 4 white marbles, 6 red marbles, and 2 blue marbles. Once a marble is selected, it is not replaced. Find the probability of selecting 2 blue marbles.
a)
1/2
b)
1/36
c)
1/6
d)
1/66
11.
Two events are mutually exclusive if:
a)
they cannot happen at the same time
b)
they can happen at the same time
c)
they always happen 
d)
they never happen 
12.
If you roll one die, what is the probability of getting an odd number or a 4?  Are the events inclusive or mutually exclusive?
a)
Not Mutually Exclusive 
b)
Mutually exclusive
13.
Is the following mutually exclusive or inclusive?
Probability of drawing a queen or a diamond from a standard deck of cards.
a)
mutually exclusive
b)
inclusive
14.
If you draw one card from a standard deck, what is the probability of drawing a 5 or a diamond?  Are the events inclusive or mutually exclusive?
a)
Inclusive
b)
Mutually Exclusive
15.
Which formula do you use when two events are mutually exclusive?
a)
P(A or B) = P(A) + P(B)
b)
P(A or B) = P(A) + P(B) - P(both)
c)
P(A and B) = P(A) * P(B)
d)
P (A and B) = P(A) * P(B|A)
16.

If you roll one die, what is the probability of getting an even number or a multiple of 3? Are the events mutually exclusive or not?

a)

Not mutually exclusive

b)

Mutually exclusive

17.

If you roll one die, what is the probability of getting an even number or a multiple of 3?

a)

2/3

b)

1/6

c)

1/2

d)

5/6

18.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
19.

What is the probability that you draw a club first and then a diamond from a standard deck of cards WITH REPLACING?

a)

1352⋅1352\frac{13}{52}\cdot\frac{13}{52}  

b)

1352⋅1351\frac{13}{52}\cdot\frac{13}{51}  

c)

1352⋅1252\frac{13}{52}\cdot\frac{12}{52}  

d)

1352⋅1251\frac{13}{52}\cdot\frac{12}{51}  

20.

What is the probability that you draw a club first and then a diamond from a standard deck of cards WITHOUT REPLACING?

a)

1352⋅1352\frac{13}{52}\cdot\frac{13}{52}  

b)

1352⋅1351\frac{13}{52}\cdot\frac{13}{51}  

c)

1352⋅1252\frac{13}{52}\cdot\frac{12}{52}  

d)

1352⋅1251\frac{13}{52}\cdot\frac{12}{51}  

21.

The probability of an event NOT occurring.

a)

Probability

b)

Sample Space

c)

Liklihood

d)

Complement

22.

What is the complement to: rolling an even number

a)

Not rolling an even number (rolling an odd number)

b)

rolling a 2,4,6

c)

Rolling a number less than 4

23.

P(NOT even) =

a)

5/7

b)

1/7

c)

2/7

d)

4/7

24.
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%
25.
A set of all possible outcomes is known as - 
a)
a list
b)
a complement
c)
a sample space
d)
an event
26.

Probabilities must be between:

a)

0 and 1

b)

0 and 10

c)

-1 and 1

d)

.01 and .99

27.

Find the number of possible outcomes in the sample space.

a)

A

b)

B

c)

C

d)

D

28.

Find the number of possible outcomes in the sample space.

a)

A

b)

B

c)

C

d)

D

29.

Max is ordering a salad for lunch. He can choose one of chicken, tofu, hard-boiled eggs, or turkey to have on the salad. He can also pick one vegetable topping. The vegetable choices are sprouts, tomatoes, or olives. How many different combinations can Max create?

a)

7 combinations

b)

12 combinations

c)

3 combinations

d)

4 combinations

30.

What does the following notation mean?

P(B|A)

a)

The probability that event B will happen after event A happens.

b)

The probability that event A will happen after event B happens.

31.
What is the probability that they speak French given they are a girl? 
a)
2.14
b)
.24
c)
.4
d)
.8571
32.

Out of those surveyed, what is the probability that the student is a boy who can't bike to school ?

a)

4/30

b)

7/30

c)

4/14

d)

14/30

33.

The two way table displays data about cars. Given that a person is a male, find the probability that the person also has a sports car.

Answer in percent

(a)  

34.

Draw how you feel about probability.

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