For a discrete random variable, the probability of the random variable takes a value within a very small interval must be
A. 
zero. 

B. 
very small. 

C. 
close to 1. 

D. 
none of the above. 
QUESTION 10
The area under the density function in a certain interval of a continuous random variable represents
A. 
randomness. 

B. 
the area of one rectangle. 

C. 
the probability of the interval. 

D. 
none of the above. 
QUESTION 11
For any random variable, X, E(X) =
A. 
X. 

B. 
0. 

C. 
some fixed number. 

D. 
None of the above. 
Get Answers For Free
Most questions answered within 1 hours.