Quiz about Discrete Probability Distributions

Question 1

Classify: The numbers of cheeseburgers a fast-food restaurant serves each day

Accepted Answer

Discrete

Answer

None of these

Answer

Abstract

Answer

Continuous

Question 2

Question 2.

Accepted Answer

Discrete

Answer

Continuous

Question 3

Question 3.

Accepted Answer

Continuous

Answer

Discrete

Question 4

Question 4.

Accepted Answer

Continuous

Answer

Discrete

Question 5

Question 5.

Accepted Answer

Discrete

Answer

Continuous

Question 6

Question 6.

Accepted Answer

0.05

Answer

0

Answer

0.1

Answer

0.5

Question 7

Question 7.

Accepted Answer

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

Answer

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

Answer

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

Answer

Yes, because the distribution is symmetric

Question 8

Question 8.

Accepted 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

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

Answer

Yes, because the distribution is symmetric

Question 9

Question 9.

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

Question 10

A marketing survey compiled data on the number of cars in households. If X = the number of cars in a randomly selected household, and we omit the rare cases of more than 5 cars, then X has the following probability distribution:
X 0 1 2 3 4 5
P(X) 0.24 0.37 0.20 0.11 0.05 0.03
What is the probability that a randomly chosen household has at least two cars?

Accepted Answer

0.39

Answer

0.20

Answer

0.29

Answer

0.61

Question 11

The table represents the probability of guessing correct on a 5 question true-false quiz.  Find the probability for at least 4 questions correct.

Accepted Answer

.1875

Answer

.03125

Answer

.15625

Answer

.3125

Question 12

The table above shows a television station's advertisement sales. The distribution of sales for one 24-hour day is given. Solve for the mean. Round to the nearest hundredth.

Accepted Answer

31.80

Answer

15.68

Answer

0.20

Answer

1.00

Question 13

The table above shows the number of cell phones per household in a small town. Find the mean round to the nearest hundredth.

Accepted Answer

2.80

Answer

2.93

Answer

0.10

Answer

0.14

Question 14

A stockbroker estimates that at the end of the year, there is a 40% chance a stock will be worth $50, a 35% chance it will be worth $60 and a 25% chance it will be worth $70.
What expected value does this broker assign to this stock's end-of-the-year price?

Accepted Answer

$58.50

Answer

$60.00

Answer

$62.50

Answer

$65.00

Question 15

Eva flips a coin. If she gets heads, she wins $4. If she gets tails, she loses $3. What is her expected value of a coin flip?

Accepted Answer

$0.50

Answer

$1

Answer

-$0.50

Answer

$0

Question 16

In a certain community, 30% of households have 1 child, 43% have 2 children, and 27% have 3 children. If a household is selected at random, what is the expected number of children in that household? HINT: A Probability table may be helpful.

Accepted Answer

1.97

Answer

2.00

Answer

2.13

Answer

1.27

Discrete Probability Distributions

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics