The following probability distribution shows the number of years the students in our class have been in college (1-freshman, 2-sophomore, 3-junior, 4-senior). What is the expected number of years in college for a student in our class a. 1.87 b. 1 c. 2 d3 x (number of years in college) Probability 1 2 3 4 0.36 0.46 0.05

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