Suppose a random variable t has a probability distribution defined by f(t) = t/20 for t = 2, 4, 6, and 8. What is the expected value for t?

Suppose a random variable t has a probability distribution defined by f(t) = t/20 for t = 2, 4, 6, and 8. What is the expected value for t?


a. 1.5

b. 2

c. 6

d. 5


Answer: c. 6


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