Question: Q4:(Marks=2+3) a) A lot containing 7 components is sampled by a quality inspector; the lot contains 4 good components and 3 defective components. A sample
Q4:(Marks=2+3)
a) A lot containing 7 components is sampled by a quality inspector; the lot contains 4 good components and 3 defective components. A sample of 3 is taken by the inspector. Find the expected value of the number of good components in this sample.
b)Find Standard deviation for following probability distribution function?

1-1), f(r) : elsewhere
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