Consider the following cumulative distribution function for the discrete random variable X. What is the probability that X is greater than 2?
A) 0.14
B) 0.30
C) 0.44
D) 0.56

Question

Consider the following cumulative distribution function for the discrete random variable X.  What is the probability that X is greater than 2?
A) 0.14 
B) 0.30 
C) 0.44 
D) 0.56

Quizplus · Accepted Answer

To find the probability that X is greater than 2, we need to look at the part of the cumulative distribution function where x is greater than 2. From the graph, we can see that this corresponds to the section of the function that starts at x = 2 and ends at x = 4. The value of the function at x = 4 is 0.70 and the value at x = 2 is 0.14, so the probability that X is greater than 2 is equal to the difference between these two values: 0.70 - 0.14 = 0.56. Therefore, the answer is D.

Consider the Following Cumulative Distribution Function for the Discrete Random