The discrete random variableXis the number of students that show up for Professor Smith's office hours on Monday afternoons. The table below shows the probability distribution forX.What is the expected valueE(X) for this distribution?

X 0 1 2 3 total

P(X) .40. 30 .20 .10 1.00

Multiple Choice

• 1.2
• 1.0
• 1.5
• 2.0