The discrete random variable x is the number of students, Ask an Expert

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The discrete random variable X is the number of students that show up for Professor Smith's office hours on Monday afternoons. The table below shows the probability distribution for X. What is the probability that at least 1 student comes to office hours on any given Monday?

X 0 1 2 3 Total

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

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