Probability Unit Test

Answer 1

Below is a sample probability unit test that includes a mix of multiple-choice and short-answer questions:

1. What is the probability of flipping a coin and getting tails?
a) 1/2
b) 1/3
c) 1/4
d) 1/6

2. A deck of cards contains 52 cards. What is the probability of drawing a red card?
a) 1/2
b) 1/3
c) 1/4
d) 1/2

3. A standard six-sided die is rolled. What is the probability of rolling a 4?
a) 1/6
b) 1/3
c) 1/4
d) 1/2

4. If you roll a six-sided die twice, what is the probability of rolling two 5s?
a) 1/36
b) 1/12
c) 1/6
d) 1/3

5. A bag contains 5 red marbles and 3 blue marbles. What is the probability of randomly selecting a red marble from the bag?
a) 5/8
b) 3/8
c) 1/2
d) 2/5

6. Define the term "sample space" in probability theory.

7. Explain the difference between independent and dependent events in probability.

8. A fair six-sided die is rolled. What is the probability of rolling a 1 or a 2?

9. A bag contains 10 green marbles, 4 red marbles, and 6 blue marbles. If a marble is randomly selected from the bag, what is the probability of selecting a red or blue marble?

10. Two cards are drawn from a standard deck of 52 cards without replacement. What is the probability of drawing a red card and then a black card?

This test covers a range of probability concepts, including basic probability calculations, sample space, different types of events, and conditional probability. Students are expected to demonstrate their understanding of these concepts through both multiple-choice and short-answer questions.