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Each student arrives in office hours one by one, independently of each other, at a steady...

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Statistics

Each student arrives in office hours one by one, independentlyof each other, at a steady rate. On average, three students come toa two-hour office hour time block. Let S be the number of studentsto arrive in a two-hour office hour time block.

What is the distribution of S? What is its parameter?

Group of answer choices

S ∼ Geo(1/3)

S∼Pois(3)

S∼Bin(2,1/3)

S-Pois(1.5)

What is the probability that S = 4?

What is the probability that S ≤ 2?

What is the variance of S?

What is the expected value of S?

Answer & Explanation Solved by verified expert
4.0 Ratings (699 Votes)
We are given S is the number of students to arrive in atwohour office hour time blockSince the number of students to arrive in the twohour officehour time block has the    See Answer
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