# Probability Trivia Questions Quiz! Test Your Knowledge

15 Questions | Total Attempts: 75

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• 1.
You choose a letter from the alphabet at random.  What is the probability of choosing the letter Q?
• A.

1 out of 2

• B.

1 out of 26

• C.

1 out of 12

• D.

0 out of 1

• 2.
Suppose you flip a coin 3 times, what is the probability that the coin will land on heads 3 times?
• A.

1/2

• B.

1/6

• C.

1/4

• D.

1/8

• 3.
What is the probability that a day of the week picked at random is a Saturday?
• A.

1/3

• B.

1/6

• C.

1/2

• D.

1/7

• 4.
A card game has 25 red cards, 25 green cards, 25 yellow cards, 25 blue cards, and 8 wild cards. What is the probability that the first card dealt is a wild card?
• A.

8/100

• B.

4/25

• C.

2/27

• D.

4/27

• 5.
A spinner that is numbered 1-7 is used for a game. What is the probability that a 5 will be spun?
• A.

1/6

• B.

1/5

• C.

1/7

• D.

5/7

• 6.
There are 12 marbles in a bag.  Four are yellow, two are green, and 6 are red.  What is the probability of choosing a yellow marble?
• A.

3:1

• B.

1/3

• C.

1/2

• D.

50%

• E.

1/6

• 7.
A coin is tossed 50 times, and it lands on heads 28 times.  What portion of the flips were heads?
• A.

11/25

• B.

28/100

• C.

.56

• D.

50:28

• E.

.44

• F.

28%

• 8.
A six-sided dice is tossed three times.  For the third flip, what is the probability of landing on a 1?
• A.

24

• B.

3/24

• C.

1

• D.

1/6

• 9.
The F1 generation in a fruit fly lab produces 190 total offspring.  There are 52 red-eyed flies and 138 white-eyed flies.  The is the ratio of red-eyed to white-eyed flies?
• A.

.37

• B.

.73

• C.

2.65

• D.

1: 2.65

• E.

1: 3.65

• F.

1:1.38

• 10.
Pea plants are crossed and produce 240 offspring (170 of which are purple, all others are white).  What is the ratio of purple to white flowers?
• A.

1 : 1.41

• B.

1.41 : 1

• C.

3.42 : 1

• D.

2.43 : 1

• E.

.71

• F.

.29

• G.

.41

• 11.
The F1 generation in a fruit fly lab produces 190 total offspring.  There are 52 red-eyed flies and 138 white-eyed flies.  The proportion of the offspring are white-eyed?
• A.

.37

• B.

.73

• C.

2.65

• D.

1: 2.65

• E.

1: 3.65

• F.

1:1.38

• 12.
Pea plants are crossed and produce 240 offspring (170 of which are purple, all others are white).  What percent of the plants display purple flowers?
• A.

1 : 1.41

• B.

1.41 : 1

• C.

3.42 : 1

• D.

2.43 : 1

• E.

71%

• F.

29%

• G.

41%

• 13.
When crossing a Aa X Aa, it is expected that 25% of the offspring will be recessive.  If a cross produces 48 mice, how many are predicted to be recessive?
• A.

.25

• B.

1\4

• C.

12

• D.

14

• E.

25

• 14.
You flip a coin eight times and get six heads.  On the ninth flip, what is the change you will get another heads?
• A.

Nearly 100%

• B.

Nearly 0%

• C.

50%

• D.

Little higher than 50%

• E.

Little lower than 50%

• 15.
When you cross a Aa x aa, what ratio of dominant:recessive do you expect?
• A.

4:0

• B.

3:1

• C.

2:2

• D.

0:4

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