Quiz about 5P1.1, 1.4

Question 1

What is the probability of flipping a coin

3 times and getting 3 heads?

Accepted Answer

1/8

Answer

1/4

Answer

1/2

Answer

3/4

Question 2

If you roll one die, what is the probability of getting an even number or a multiple of 3?

Accepted Answer

2/3

Answer

1/3

Answer

1/2

Answer

1/6

Question 3

Which of the following shows how to determine P(shaded number or number less than five)?

Accepted Answer

4/8 + 4/8 - 2/8

Answer

4/9 + 2/8 - 4/8

Answer

4/8 + 6/8 + 2/8

Answer

2/8 + 4/8 - 4/8

Question 4

Which formula do you use when two events are mutually exclusive?

Accepted Answer

P(A or B) = P(A) + P(B)

Answer

P(A or B) = P(A) + P(B) - P(both)

Answer

P(A and B) = P(A) * P(B)

Answer

P (A and B) = P(A) * P(B|A)

Question 5

An event and its complement can occur at the same time.

Accepted Answer

False

Answer

True

Question 6

Homecoming has 7 candidates for King. How many ways can a King and a First Runner-up be chosen to form the Festival Court?

Accepted Answer

$$7\cdot6$$

Answer

$$7\cdot2$$

Answer

$$7\cdot6\cdot5\cdot4\cdot3\cdot2\cdot1$$

Answer

$$\frac{7\cdot6}{2\cdot1}$$

Question 7

If Lucas owns 11 hoodies,how many ways can he choose four to bring on vacation?

Accepted Answer

$$\frac{11\cdot10\cdot9\cdot8}{4\cdot3\cdot2\cdot1}$$

Answer

$$11\cdot4$$

Answer

$$11\cdot10\cdot9\cdot8\cdot7\cdot6\cdot5\cdot4\cdot3\cdot2\cdot1$$

Answer

$$11\cdot10\cdot9\cdot8$$

Question 8

Find the probability that a female is selected given they drive an SUV.

Accepted Answer

135/156

Answer

180/240

Answer

156/240

Answer

156/180

Answer

135/240

Question 9

Consider the following table with information about all of the students taking Statistics at Happy High School.

Find P( Female and Part-time) =

Accepted Answer

15/71

Answer

15/31

Answer

31/71

Answer

16/31

Answer

15/43

Question 10

Consider the following table with information about all of the students taking Statistics at Happy High School.

Find P( Female or Full-time) =

Accepted Answer

55/71

Answer

15/31

Answer

83/71

Answer

28/71

Answer

15/43

Question 11

What is P(Foreign language or Sport)?
(Sample Total is 40)

Accepted Answer

Answer

Answer

Answer

Answer

Question 12

Question 12.

Accepted Answer

No, the sum of all the probabilities is not 1.

Answer

Yes, because all of the probabilities are between 0 and 1 inclusive and the sum of all the probabilities is 1.

Answer

No, all probabilities are not be between 0 and 1 inclusive

Answer

Yes, because the distribution is symmetric

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