More Discrete Probability Distributions

Determine which of the following distribution is NOT a probability distribution.

• A

• B

• C

• D

What are the random variables in the given problem.

• x = 1, 2, 3

• x = 0, 1, 2, 3

• x = 2, 3, 4, 5, 6

• x = 0, 2, 4, 6, 8

What is the probability distribution of getting a sum of 6

• 0.50

• 0.75

• 0.125

• 0.25

The probability distribution for the random variable x is shown in the table

• 
• 
• 
• 

Find the missing value for P(X=5) in the probability ditribution:

Number of Toys | Probability

0| 0.03

1| 0.16

2| 0.30

3| 0.23

4| 0.17

5| ?

• 0.11

• 0.21

• 0.01

• 0.31

Find P( X = 4).

• 1.00

• 0.91

• 0.02

• 0.07

Consider the following distribution where X = number of mice caught in an apartment in a night:

Mice | Probability

0 | 0.12

1 | 0.20

2 | 0.31

3 | 0.14

4 | 0.16

5 | 0.07

What is the probability of trapping at least three mice?

• 0.14

• 0.37

• 0.23

• 0.16

Consider the following distribution where X = number of mice caught in an apartment in a night:

Mice | Probability

0 | 0.12

1 | 0.20

2 | 0.31

3 | 0.14

4 | 0.16

5 | 0.07

What is the probability of trapping fewer than 3 mice?

• 0.14

• 0.37

• 0.63

• 0.16

Is the number of cheeseburgers a fast-food restaurant serves each day discrete or continuous?

• Discrete

• Continuous

Is the number of orange Skittles in a bag discrete or continuous data?

• Discrete

• Continuous