Challenge Exercises: Probability

Challenge Exercises Unit 6

Directions: Read each question below. Select your answer by clicking on its button. Feedback to your answer is provided in the RESULTS BOX. If you make a mistake, choose a different button. For some problems, the answers have been rounded to the nearest percent.

1. Which of the following is the sample space when 2 coins are tossed?

{H, T, H, T}
{H, T}
{HH, HT, TH, TT}
None of the above.

RESULTS BOX:

2. At Kennedy Middle School, 3 out of 5 students make honor roll. What is the probability that a student does not make honor roll?

65%
40%
60%
None of the above.

RESULTS BOX:

3. A large basket of fruit contains 3 oranges, 2 apples and 5 bananas. If a piece of fruit is chosen at random, what is the probability of getting an orange or a banana?

None of the above.

RESULTS BOX:

4. A pair of dice is rolled. What is the probability of getting a sum of 2?

None of the above.

RESULTS BOX:

5. In a class of 30 students, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If a student is chosen at random, what is the probability of choosing a girl or an A student?

None of the above.

RESULTS BOX:

6. In the United States, 43% of people wear a seat belt while driving. If two people are chosen at random, what is the probability that both of them wear a seat belt?

86%
18%
57%
None of the above.

RESULTS BOX:

7. Three cards are chosen at random from a deck without replacement. What is the probability of getting a jack, a ten and a nine?

None of the above.

RESULTS BOX:

8. A city survey found that 47% of teenagers have a part time job. The same survey found that 78% plan to attend college. If a teenager is chosen at random, what is the probability that the teenager has a part time job and plans to attend college?

60%
63%
37%
None of the above.

RESULTS BOX:

9. In a school, 14% of students take drama and computer classes, and 67% take drama class. What is the probability that a student takes computer class given that the student takes drama class?

81%
21%
53%
None of the above.

RESULTS BOX:

10. In a shipment of 100 televisions, 6 are defective. If a person buys two televisions from that shipment, what is the probability that both are defective?

None of the above.

RESULTS BOX:

Probability Theory Unit

Lesson Access

Introduction to Probability

Certain and Impossible Events

Sample Spaces

The Complement of an Event

Mutually Exclusive Events

Addition Rules for Probability

Independent Events

Dependent Events

Conditional Probability

Practice Exercises

Challenge Exercises

Solutions

Related Activities Access

Interactive Probability Puzzle

Printable Probability Worksheet

Probability Goodies Game

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1.	Which of the following is the sample space when 2 coins are tossed?

	{H, T, H, T} {H, T} {HH, HT, TH, TT} None of the above. RESULTS BOX:

2.	At Kennedy Middle School, 3 out of 5 students make honor roll. What is the probability that a student does not make honor roll?

	65% 40% 60% None of the above. RESULTS BOX:

3.	A large basket of fruit contains 3 oranges, 2 apples and 5 bananas. If a piece of fruit is chosen at random, what is the probability of getting an orange or a banana?

	None of the above. RESULTS BOX:

4.	A pair of dice is rolled. What is the probability of getting a sum of 2?

	None of the above. RESULTS BOX:

5.	In a class of 30 students, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If a student is chosen at random, what is the probability of choosing a girl or an A student?

	None of the above. RESULTS BOX:

6.	In the United States, 43% of people wear a seat belt while driving. If two people are chosen at random, what is the probability that both of them wear a seat belt?

	86% 18% 57% None of the above. RESULTS BOX:

7.	Three cards are chosen at random from a deck without replacement. What is the probability of getting a jack, a ten and a nine?

	None of the above. RESULTS BOX:

8.	A city survey found that 47% of teenagers have a part time job. The same survey found that 78% plan to attend college. If a teenager is chosen at random, what is the probability that the teenager has a part time job and plans to attend college?

	60% 63% 37% None of the above. RESULTS BOX:

9.	In a school, 14% of students take drama and computer classes, and 67% take drama class. What is the probability that a student takes computer class given that the student takes drama class?

	81% 21% 53% None of the above. RESULTS BOX:

10.	In a shipment of 100 televisions, 6 are defective. If a person buys two televisions from that shipment, what is the probability that both are defective?

	None of the above. RESULTS BOX: