Free Printable Probability 10.1-10.2

1.

Find the probability of randomly selecting a yellow figure.

(a)

2.

What is the probability of randomly selecting a 4-sided figure?

(a)

3.

Find the probability of randomly choosing a figure that is not red.

(a)

4.

Raawi asks his classmates if they have brown hair or wear glasses. How many students did he survey?

a)

3

b)

18

c)

22

5.

How many people have walked on the moon?

a)

12

b)

15

c)

32

d)

55

6.

What is the probability that a randomly selected student has glasses and brown hair?

a)

3/22

b)

18/22

c)

16/22

d)

5/22

7.

What is the probability that a randomly selected student has glasses or brown hair?

a)

3/22

b)

18/22

c)

16/22

d)

5/22

8.

Clara picks a marble at random from a bag of 30 marbles, puts it back, and then picks another marble at random. This example is ________________.

a)

Dependent

b)

Independent

9.

You flip a nickel three times.

Find the probability that all flips will land on tails.

a)

$3\left(\frac{1}{2}\right)$

b)

$\left(\frac{1}{2}\right)\left(\frac{1}{2}\right)$

c)

$\left(\frac{1}{2}\right)\left(\frac{1}{2}\right)\left(\frac{1}{2}\right)$

d)

$\frac{1}{2}+\frac{1}{2}+\frac{1}{2}$

10.

40% of students in a school wore blue on a Spirit Day. If two students are randomly selected, what is the probability that both students will be wearing blue?

a)

$\frac{40}{100}\times\frac{40}{100}$

b)

$\frac{40}{100}\times\frac{39}{99}$

c)

$\frac{40}{100}\times\frac{40}{99}$

d)

$\frac{40}{100}+\frac{39}{100}$

11.

Like your fingerprints, you also have a unique

a)

Tongue print

b)

Toe print

c)

Hair follicle

d)

Fingernail texture

12.

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

a)

2/20

b)

13/20

c)

11/20

d)

8/20

13.

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

a)

2/20

b)

13/20

c)

11/20

d)

8/20

14.

Find the probability of choosing a student at random that does not play a sport

a)

3/20

b)

9/20

c)

10/20

d)

7/20

15.

What type of animal is Manny in the movie Ice Age?

a)

Squirrel

b)

Sloth

c)

Sabretooth Tiger

d)

Mammoth

Probability 10.1-10.2

Total questions: 15

Worksheet time: 7mins

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