Use the Following Information for Questions:
Based on Her $\le$

Multiple Choice

Use the following information for questions:
Based on her past experience, a professor knows that the probability distribution for X = number of students who come to her office hours on Wednesday is given below.
-What is the value of the cumulative probability distribution at 2, i.e. P(X $\le$ 2) ?

A) 0.50
B) 0.70
C) 0.80
D) 0.90