Binomial Distribution (Optional) · Exercise 23
Let X = the number of games won in that upcoming month.
Suppose that about 85 percent of graduating students attend their graduation. A group of 22 graduating students is randomly chosen.
(a) In words, define the random variable X.
(b) List the values that X may take on.
(c) Give the distribution of X. X ~ _____(_____,_____)
(d) How many are expected to attend their graduation?
(e) Find the probability that 17 or 18 attend.
(f) Based on numerical values, would you be surprised if all 22 attended graduation? Justify your answer numerically.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Statistics · §4.3 Binomial Distribution (Optional) · Exercise 23
No hints for this one.
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