SOLUTION: Check if the following random variable is binomial. A business has 20 sales representatives. Five of the sales representatives are randomly selected (without replacement) and t

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Question 977932: Check if the following random variable is binomial.
A business has 20 sales representatives. Five of the sales representatives are randomly selected (without replacement) and the number of females selected is recorded.
Now, give the number corresponding to the following choices:
1: It is binomial.
2: It is not binomial because there is not a fixed number of trials.
3: It is not binomial because there are not two outcomes (success/failure).
4: It is not binomial because the probability is not fixed.
Answer by Boreal(15235) About Me  (Show Source):
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D.
The probability has to remain constant from trial to trial.
There are assumed two outcomes, there are a fixed number of trials, and there is a fixed number of successes, but the probability changes with each trial.