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Worksheets

Mutually Exclusive and Inclusive Events

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

Sarah has 15 red chips, 12 blue chips, and 13 white chips. What is the probability that Sarah randomly selects a red or a white chip is an example of mutually ________ event.

a)

Exclusive

b)

Inclusive

2.

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(A∩ B)

c)

P(A and B) = P(A) * P(B)

d)

P(A and B) = P(A) - P(B)

3.

Is the situation a mutually exclusive event or non-exclusive (inclusive)


A die is rolled. What is the probability of rolling a 5 or a number greater than 3?

a)

Exclusive

b)

Non-Exclusive (Inclusive)

4.

Two events are mutually exclusive if they have ​ (a)   outcome(s) in common. This means that 𝑃(𝐴 ∩ 𝐵) =

​ (b)   .

Choose from the below words

No

0

One

Many

1

Between 0 & 1

5.

Which formula do you use when two events are NOT mutually exclusive?

a)

P(A or B) = P(A) + P(B)

b)

P(A or B) = P(A) + P(B) - P(A and B)

c)

P(A and B) = P(A) * P(B)

d)

P (A and B) = P(A) * P(B|A)

6.

Which of the following shows how to determine P(packers or male)?

a)

75/150 + 90/150 - 50/150

b)

75/150 + 35/150 - 25/150

c)

50/150 + 40/150 + 25/150

d)

90/150 + 50/150 - 75/150

7.

The enrollment at Southburg High School is 1400.  Suppose 550 students take French, 700 take algebra, and 400 take both French and algebra.  What is the probability that a student selected randomly takes French or algebra?

a)

1250/1400

b)

700/1400

c)

550/1400

d)

17/28

8.

Which of the following shows how to determine P(diamond or face card)?

a)

13/52 + 12/52 - 3/52

b)

3/52 + 13/52 -12/52

c)

3/52 + 12/52 - 13/52

d)

1/13 + 3/52 - 1/4

9.

Which of the following shows how to determine P(odd number or shaded number)?

a)

4/8 + 3/8 - 1/8

b)

3/8 + 6/8 - 4/8

c)

4/8 - 5/8 + 3/8

d)

4/8 + 4/8 - 4/8

10.

Identify the shaded area...

a)

A∩B

b)

A∪B

c)

A'∩B'

d)

A'∪B'

11.

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

12.

What is the probability that a student is a female or left-handed?

a)

53/121

b)

58/121

c)

7/53

d)

12/121

13.

Find the probability of choosing a student at random that plays an instrument OR a sport.

a)

1/2

b)

13/20

c)

21/20

d)

4/5

14.

Identify the shaded area...

a)

A

b)

B

c)

A'

d)

B'

15.

A jar contains 9 balls, numbered from one to nine. You randomly pick a ball. What is the probability that you select a one or a six?

a)

inclusive

b)

mutually exclusive

16.

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

17.

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 

18.

Identify if the events are mutually exclusive or not mutually exclusive, then calculate the probability. Leave as a fraction.

a)

    512\frac{5}{12}  

b)

    112\frac{1}{12}  

c)

   12121\frac{12}{121}  

d)

   712\frac{7}{12}  

19.

Identify if the events are mutually exclusive or not mutually exclusive, then calculate the probability. Leave as a percentage.

a)

      910\frac{9}{10}  

b)

      710\frac{7}{10}  

c)

      29\frac{2}{9}  

d)

      12\frac{1}{2}  

20.

Which of the following pairs of events is mutually exclusive?

a)

Cards: Aces and Spades

b)

Two dice: Odd and even

c)

Sit down and stand up

d)

Sit down and scratch your nose