Free Printable Probability Review Quiz

1.

You roll a pair of fair dice. What are the odds against rolling a sum of 10?

a)

1:12

b)

1:11

c)

12:1

d)

11:1

2.

Suppose this Accounting Monster really does generate random digits. What are the odds against Dilbert seeing this particular result for six digits?

a)

999,999:1

b)

60:1

c)

59:1

d)

1,000,000:1

3.

If all the letters in the alphabet were placed in a bowl, what are the odds for pulling out an “A”, “H”, “R” or “X”?

a)

2:11

b)

11:2

c)

2:13

d)

13:2

4.

A horse's odds of winning a race are quoted at 7:2. What is the probability that the horse wins the race? Round to the nearest percent.

[**Note - Odds in horse racing are always odds against.]

a)

22%

b)

28%

c)

78%

d)

72%

5.

Consider the sample space represented by the Venn Diagram. What is P(not sport)?

a)

$\frac{12}{25}$

b)

$\frac{13}{25}$

c)

$\frac{3}{50}$

d)

$\frac{23}{50}$

6.

Of the times when the forecast called for rain, what is the percentage that it actually rained?

a)

about 90%

b)

about 50%

c)

about 80%

d)

about 70%

7.

What percent of the total population surveyed were electrical engineers that like math?

a)

6

b)

5

c)

11

d)

50

8.

What percent of people who attended the basketball game also attended the school play?

a)

15%

b)

19%

c)

7%

d)

.15

9.

In a group of 101 students, 40 are juniors and 50 are female and 22 are female juniors. Find the probability that a student selected from the group at random is either a junior or female.

a)

$\frac{30}{101}$

b)

$\frac{90}{101}$

c)

$\frac{68}{101}$

d)

$\frac{20}{101}$

10.

A single card is chosen at random from a standard deck of 52 playing cards. What is the probability of choosing a king or a club?

a)

$\frac{17}{52}$

b)

$\frac{4}{13}$

c)

$\frac{1}{52}$

d)

$\frac{10}{13}$

11.

A number is chosen from 1 to 10. What is the probability of choosing a 5 or an even number?

a)

$\frac{3}{5}$

b)

$\frac{1}{5}$

c)

$\frac{2}{5}$

d)

$\frac{4}{5}$

12.

Des buys a pack of Starbursts that has 3 orange, 6 pink, 1 yellow, and 5 red Starbursts. She puts the candy in the bowl. If she reaches in and grabs two Starbursts without putting one back, what is the probability that she will pick a pink and then a yellow?

a)

$\frac{1}{35}$

b)

$\frac{7}{210}$

c)

$\frac{6}{225}$

d)

$\frac{2}{75}$

13.

Find the probability of flipping a heads on a coin, and then getting the color yellow on a spinner with 6 colors.

a)

$\frac{1}{12}$

b)

$\frac{2}{9}$

c)

$\frac{3}{7}$

d)

$\frac{7}{19}$

14.

What is the probability that you will get plain crust with ham on your pizza?

a)

$\frac{1}{8}$

b)

$\frac{1}{2}$

c)

$\frac{1}{10}$

d)

$\frac{1}{5}$

15.

The sample space tree diagram for a team of three students is shown. What is the probability that the team would consist of at least 2 girls?

a)

$\frac{1}{2}$

b)

$\frac{3}{8}$

c)

$\frac{3}{4}$

d)

$\frac{1}{6}$

16.

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)

$\frac{5}{6}$

b)

$\frac{1}{2}$

c)

$\frac{1}{3}$

d)

$\frac{1}{6}$

17.

Find the probability using the table:

P(Pizza and Senior)

a)

$\frac{3}{25}$

b)

$\frac{2}{3}$

c)

$\frac{1}{2}$

d)

$\frac{3}{2}$

e)

$\frac{1}{2}$

18.

Are being a freshman and preferring pizza which of these events?

a)

independent

b)

dependent

c)

mutually exclusive

d)

none of these

19.

If you are picking a card randomly from a deck of cards, the events of picking a jack and picking a heart are mutually exclusive.

a)

True

b)

False

20.

If a spinner is numbered 1 – 8, when you spin it the events of spinning an odd number and spinning an 8 are which of these events?

a)

independent

b)

dependent

c)

mutually exclusive

d)

permutation

21.

If you roll one die, what is the probability of getting an odd number or a 4?

a)

$\frac{2}{3}$

b)

$\frac{1}{3}$

c)

$\frac{1}{2}$

d)

$\frac{1}{6}$

22.

When rolling a 6 sided die, what is the probability of rolling either an even number or a 5?

a)

$\frac{1}{2}$

b)

$\frac{5}{6}$

c)

$\frac{2}{3}$

d)

$\frac{1}{12}$

23.

Danny has 20 chocolates. 5 are milk chocolates, 10 are dark chocolates, and 5 are white chocolates. What is the probability of getting a milk chocolate and a dark chocolate?

a)

$\frac{1}{8}$

b)

$\frac{1}{4}$

c)

$\frac{1}{2}$

d)

$\frac{3}{20}$

24.

What is the probability of spinning green or blue?

a)

$0$

b)

$\frac{5}{12}$

c)

$\frac{1}{2}$

d)

$\frac{3}{4}$

25.

If you draw one card from a standard deck, what is the probability of drawing a 5 or a diamond?

a)

$\frac{1}{26}$

b)

$\frac{1}{13}$

c)

$\frac{4}{13}$

d)

$\frac{1}{2}$

Probability Review Quiz

Total questions: 25

Worksheet time: 14mins

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