The Discrete Random Variable X Is the Number of Passengers $$\begin{array} { l c c c c r } X & 0 & 1 & 2 & 3 & \text { Total } \\P ( X ) & 20 & 40 & 30 & 10 & 1.00\end{array}$$

question 34

Multiple Choice

The discrete random variable X is the number of passengers waiting at a bus stop. The table below shows the probability distribution for X. What is the expected value E(X) for this distribution? $$\begin{array} { l c c c c r } X & 0 & 1 & 2 & 3 & \text { Total } \\P ( X ) & 20 & 40 & 30 & 10 & 1.00\end{array}$$

• A)1.1
• B)1.3
• C)1.7
• D)1.9