TS EAMCET · Maths · Probability
From a lot containing \(n\) good and \(m\) bad articles, if 2 articles are picked at random in succession without replacement, then the probability that the second article picked is bad is
- A \(\frac{m}{m+n}\)
- B \(\frac{m-1}{m+n}\)
- C \(\frac{(n-1)(m-1)}{(m+n)^2}\)
- D \(\frac{m n}{(m+n)^2}\)
Answer & Solution
Correct Answer
(A) \(\frac{m}{m+n}\)
Step-by-step Solution
Detailed explanation
Good articles \(=n\), bad articles \(=m\) 2 articles are picked up without replacement \(2^n\) is bad Conditions First bad and second bad or first Good and second bad…
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