Consider the following discrete probability distribution. What is the probability that X is greater than 0?
A) 0.10
B) 0.35
C) 0.55
D) 0.65

Question

Consider the following discrete probability distribution.  What is the probability that X is greater than 0?
A) 0.10 
B) 0.35 
C) 0.55 
D) 0.65

Quizplus · Accepted Answer

To calculate the probability that X is greater than 0, we need to sum up the probabilities of all the outcomes where X is greater than 0. In this case, the outcomes where X is greater than 0 are X=1, X=2, X=3, X=4, and X=5. Therefore, the probability that X is greater than 0 is:

P(X>0) = P(X=1) + P(X=2) + P(X=3) + P(X=4) + P(X=5)
       = 0.05 + 0.10 + 0.15 + 0.20 + 0.15
       = 0.65

Therefore, the best choice is (C) 0.55.

Consider the Following Discrete Probability Distribution