THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
The following table displays the joint probability distribution of two discrete random variables X and Y. 
-Compute the standard deviation for X.
Definitions:
Positive Reinforcement
A process in behavioral psychology where a desirable stimulus is presented after a behavior, increasing the likelihood of that behavior being repeated in the future.
Response Strengthened
This term describes the process by which a behavior becomes more likely to occur as a result of reinforcement.
Negative Reinforcement
A behavioral principle where the removal of an unpleasant stimulus following a desired behavior increases the likelihood of the behavior occurring again.
Positive Reinforcement
A method of strengthening desired behaviors by presenting a desirable stimulus after the behavior occurs.
Q34: What is the probability that you get
Q35: What is the expected value of X?<br>A)2.74<br>B)0.46<br>C)1.78<br>D)3.02<br>
Q36: Investment A has an expected return of
Q65: Over the course of the next year,the
Q86: What is the probability that none of
Q112: What is the probability that between 17
Q114: Find the upper confidence limit of the
Q167: What is the probability that the class
Q194: A pair of jointly distributed random variables
Q201: If X is a normal random variable