CUET · MATHS · PYQ PAPER 2023
If the mean of Binomial distribution is 5 and Variance is 3 then the value of \(p\) (probability of success) is :
- A \(\frac{1}{5}\)
- B \(\frac{2}{5}\)
- C \(\frac{3}{5}\)
- D \(\frac{4}{5}\)
Answer & Solution
Correct Answer
(B) \(\frac{2}{5}\)
Step-by-step Solution
Detailed explanation
\( np = 5 \) \( np(1-p) = 3 \) \( 5(1-p) = 3 \) \( 1-p = \frac{3}{5} \) \( p = 1 - \frac{3}{5} = \frac{2}{5} \)
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