Unit Test #64

Select your answers to the following 5 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:

 

 

x
1
2
3
P(X=x)
0.2
k
0.2

What is the value of k?

A. 0.2
B. 0.3
C. 0.5
D. 0.6

Answer 1:

 

 

Q2:

 

What is E(X) from the distribution shown above?

A. 0.6
B. 0.2
C. 2
D. 3

Answer 2:

 

 

Q3:

 

 

z
5
6
7
8
P(Z = z)
s
3s
4s
2s

What is the value of s?

A. 0.1
B. 0.2
C. 0.3
D. 0.4

Answer 3:

 

 

Q4:

 

In question 3, what is P(Z = 6)?

A. 0.1
B. 0.2
C. 0.3
D. 0.4

Answer 4:

 

 

Q5:

 

In question 3, what is E(Z)?
A. 7.1
B. 6.7
C. 6
D. 7

Answer 5: