Free Printable Probability

1.

Writing your answers as fractions in lowest terms, find the probability that Carol completes exactly one assignment.

a)

$\frac{1}{6}$

b)

$\frac{2}{9}$

c)

$\frac{5}{18}$

d)

$\frac{1}{3}$

2.

Writing your answers as fractions in lowest terms, find the probability that Carol completes more than one assignment.

a)

$\frac{11}{18}$

b)

$\frac{15}{18}$

c)

$\frac{6}{21}$

d)

$\frac{8}{30}$

3.

Writing your answers as fractions in lowest terms, find the probability that Carol completes at least one assignment.

a)

$\frac{11}{18}$

b)

$\frac{15}{18}$

c)

$\frac{6}{21}$

d)

$\frac{8}{30}$

4.

Find the probability that the number of homework assignments Carol completes is not exactly 2.

a)

$\frac{13}{18}$

b)

$\frac{1}{18}$

c)

$\frac{5}{18}$

d)

$\frac{4}{18}$

5.

Carol has a bag containing 3 red chips, 10 blue chips, and 7 green chips. Estimate the probability (as a fraction or decimal) of Carol reaching into her bag and pulling out a green chip.

a)

0.2

b)

0.15

c)

0.5

d)

0.35

6.

A regular 6-sided die is to be rolled once. What is the probability that a number less than 3 is rolled?

a)

1/3

b)

1/6

c)

1/2

d)

2/3

7.

What is the probability of spinning green?

a)

0

b)

1/4

c)

1/2

d)

3/4

8.

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

a)

3/5

b)

9/100

c)

1/10

d)

2/5

9.

If you spin the spinner 90 times, how many times should the number 3 be selected?

a)

9

b)

15

c)

16

d)

30

10.

The cafeteria is serving three kinds of sandwiches: tuna (T), chicken, (C), and peanut butter (P). They are also serving a choice of two drinks: milk (M) or water (W). Which shows the CORRECT Sample Space List of possible combinations?

a)

TW, CW, PW

b)

TW, TM, TC, CW, PW

c)

TW, TM, CW, CM, PW, PM

d)

TCP, MW

Probability

Total questions: 10

Worksheet time: 20mins

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