Short Answer
Defective Items Narrative
A random sample of 4 units is taken from a group of 15 items in which 4 units are known to be defective. Assume that sampling occurs without replacement, and the random variable x represents the number of defective units found in the sample.
-Refer to Defective Items Narrative. What is the variance of the random variable x?
Correct Answer:

Verified
Correct Answer:
Verified
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