MHT CET · Maths · Probability
A fair coin is tossed a fixed number of times. If the probability of getting 5 tails is same as the probability of getting 7 tails, then the probability of getting 3 tails is
- A \(\frac{44}{2^{13}}\)
- B \(\frac{55}{2^{10}}\)
- C \(\frac{55}{2^{13}}\)
- D \(\frac{44}{2^{10}}\)
Answer & Solution
Correct Answer
(B) \(\frac{55}{2^{10}}\)
Step-by-step Solution
Detailed explanation
\(C(n, 5) = C(n, 7)\) \(n = 5 + 7 = 12\)
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