The probability that a tutor will see 0, 1, 2, 3, or 4 students 0 | 1 2 3 4 4 P(x) 1 5 ? 27 27 9 27 (a) What is the probability that the tutor see 3 students? (b) What is the probability that the number of students the tutor will see is between 1 and 3 inclusive? (c) What is the expected number of students that the tutor will see? (d) What is the standard deviation?

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