From a portion of a probability distribution, you read that P(demand = 0) is 0.05 and P(demand = 1) is 0.15. The cumulative probability for demand = 1 would be which of the following?
A) 0.05
B) 0.075
C) 0.10
D) 0.15
E) 0.20

Question

Quizplus · Accepted Answer

The cumulative probability for demand = 1 is the sum of the probabilities for all demand levels up to and including 1. Therefore, it is P(demand = 0) + P(demand = 1) = 0.05 + 0.15 = 0.20.

From a Portion of a Probability Distribution, You Read That