cxttiemsp021
09.04.2021 •
Mathematics
Suppose that a box contains 6 cameras and that 5 of them are defective. A sample of 2 cameras is selected at random (with replacement). Define the random variable X as the number of defective cameras in the sample. Note: For to have a binomial probability distribution the sample must be with replacement, otherwise the trials are dependent.
Write the probability distribution for X.
k P(X=k)
___
___
___
What is the expected value of X?
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Ответ:
338
Step-by-step explanation: 5064 - 4726 = 338
4726 + 338 = 5064