Question
A disciplinary board at a university contains 1 student, 6 faculty, and 1 administrator.A group of 4 board members will be randomly selected to hear
A disciplinary board at a university contains 1 student, 6 faculty, and 1 administrator.A group of 4 board members will be randomly selected to hear a case.
Let the random variable X be the number of faculty selected to hear the case.
a)Find P(X = 3).
Give the probability as a fraction in lowest terms.
P(X = 3) =Blank 1. Fill in the blank, read surrounding text.
b)Find E(X).
Give the final answer as a decimal.
If rounding the final answer, give it to 2 decimal places.
E(X) =Blank 2. Fill in the blank, read surrounding text.
c)Find the standard deviation of the random variable.
Give the final answer as a decimal.
If rounding the final answer, give it to 2 decimal places.
Standard Deviation =
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