MHT CET · Maths · Probability
Two cards are drawn successively with replacement from a well shuffled pack of 52 cards. The mean of number of kings is
- A \(\frac{4}{169}\)
- B \(\frac{1}{13}\)
- C \(\frac{1}{169}\)
- D \(\frac{2}{13}\)
Answer & Solution
Correct Answer
(D) \(\frac{2}{13}\)
Step-by-step Solution
Detailed explanation
Here, \(n=2, p=\frac{1}{13}\) and \(q=\frac{12}{13}\)
Mean, \(n p=2 \times \frac{1}{13}=\frac{2}{13}\)
Mean, \(n p=2 \times \frac{1}{13}=\frac{2}{13}\)
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