Quiz about Quiz 7 - Understanding Probability Concepts

Question 1

What is the probability of rolling a 5 on a fair six-sided die?

Accepted Answer

$$\frac{1}{6}$$

Answer

$$\frac{1}{3}$$

Answer

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

Answer

$$\frac{5}{6}$$

Question 2

A bag contains 4 red marbles, 3 blue marbles, and 3 green marbles. What is the probability of randomly selecting a blue marble?

Accepted Answer

$$\frac{3}{10}$$

Answer

$$\frac{1}{10}$$

Answer

$$\frac{3}{5}$$

Answer

$$\frac{1}{3}$$

Question 3

A coin is flipped 100 times and lands on heads 48 times. What is the experimental probability of the coin landing on heads?

Accepted Answer

$$\frac{48}{100}$$

Answer

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

Answer

$$\frac{52}{100}$$

Answer

$$\frac{1}{4}$$

Question 4

A spinner is divided into 8 equal sections numbered 1 to 8. What is the probability of the spinner landing on an even number?

Accepted Answer

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

Answer

$$\frac{1}{8}$$

Answer

$$\frac{3}{8}$$

Answer

$$\frac{5}{8}$$

Question 5

A jar contains 5 red, 7 blue, and 8 yellow candies. If a candy is chosen at random, what is the probability that it is not yellow?

Accepted Answer

$$\frac{12}{20}$$

Answer

$$\frac{5}{20}$$

Answer

$$\frac{7}{20}$$

Answer

$$\frac{8}{20}$$

Question 6

A die is rolled 60 times, and the number 4 appears 15 times. What is the experimental probability of rolling a 4?

Accepted Answer

$$\frac{1}{5}$$

Answer

$$\frac{1}{4}$$

Answer

$$\frac{1}{6}$$

Answer

$$\frac{1}{3}$$

Question 7

A fair coin is flipped twice. What is the probability of getting two heads?

Accepted Answer

$$\frac{1}{4}$$

Answer

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

Answer

$$\frac{3}{4}$$

Answer

$$\frac{1}{8}$$

Question 8

A bag contains 10 marbles: 2 red, 3 blue, and 5 green. If a marble is drawn at random, what is the probability that it is either red or blue?

Accepted Answer

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

Answer

$$\frac{1}{5}$$

Answer

$$\frac{1}{3}$$

Answer

$$\frac{1}{10}$$

Question 9

A spinner is divided into 4 equal sections: red, blue, green, and yellow. If the spinner is spun 40 times and lands on red 10 times, what is the experimental probability of landing on red?

Accepted Answer

$$\frac{1}{4}$$

Answer

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

Answer

$$\frac{1}{3}$$

Answer

$$\frac{1}{5}$$

Question 10

A number cube is rolled twice. What is the probability of rolling a 2 on the first roll and a 5 on the second roll?

Accepted Answer

$$\frac{1}{36}$$

Answer

$$\frac{1}{12}$$

Answer

$$\frac{1}{6}$$

Answer

$$\frac{1}{3}$$

Question 11

A bag contains 4 red, 5 blue, and 6 green marbles. If two marbles are drawn at random, what is the probability that both are blue?

Accepted Answer

$$\frac{2}{21}$$

Answer

$$\frac{1}{21}$$

Answer

$$\frac{1}{3}$$

Answer

$$\frac{1}{7}$$

Question 12

A spinner has 5 equal sections labeled A, B, C, D, and E. What is the probability of the spinner landing on either A or B?

Accepted Answer

$$\frac{2}{5}$$

Answer

$$\frac{1}{5}$$

Answer

$$\frac{3}{5}$$

Answer

$$\frac{4}{5}$$

Question 13

A jar contains 3 red, 4 blue, and 5 yellow marbles. If a marble is drawn at random, what is the probability that it is not blue?

Accepted Answer

$$\frac{7}{12}$$

Answer

$$\frac{3}{12}$$

Answer

$$\frac{5}{12}$$

Answer

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

Question 14

A die is rolled 50 times, and the number 6 appears 8 times. What is the experimental probability of rolling a 6?

Accepted Answer

$$\frac{4}{25}$$

Answer

$$\frac{1}{6}$$

Answer

$$\frac{1}{5}$$

Answer

$$\frac{1}{8}$$

Question 15

A spinner is divided into 3 equal sections: red, blue, and green. If the spinner is spun 90 times and lands on green 30 times, what is the experimental probability of landing on green?

Accepted Answer

$$\frac{1}{3}$$

Answer

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

Answer

$$\frac{1}{4}$$

Answer

$$\frac{1}{5}$$

Question 16

A bag contains 6 red, 4 blue, and 2 green marbles. If a marble is drawn at random, what is the probability that it is either red or green?

Accepted Answer

$$\frac{2}{3}$$

Answer

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

Answer

$$\frac{3}{5}$$

Answer

$$\frac{4}{5}$$

Question 17

A coin is flipped three times. What is the probability of getting exactly two heads?

Accepted Answer

$$\frac{3}{8}$$

Answer

$$\frac{1}{8}$$

Answer

$$\frac{1}{4}$$

Answer

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

Question 18

If the probability of raining tomorrow is 0.8, how would you describe the likelihood of rain?

Accepted Answer

Likely

Answer

Unlikely

Answer

Neither likely nor unlikely

Answer

Impossible

Question 19

Which probability value represents an impossible event?

Accepted Answer

0

Answer

0.25

Answer

0.5

Answer

1

Question 20

Which of the following probabilities indicates a certain event?

Accepted Answer

1

Answer

0

Answer

0.5

Answer

0.75

Quiz 7 - Understanding Probability Concepts

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