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Question: Answered & Verified by Expert
If $\mathrm{X}$ is a binomial variate with $n=7$ and $P(X=3)=P(X=4)$ then $P(X=5)=$
MathematicsProbabilityAP EAMCETAP EAMCET 2017 (25 Apr Shift 1)
Options:
  • A $21 \cdot \frac{3^2}{4^7}$
  • B $21 \cdot \frac{3^5}{4^7}$
  • C $7 \cdot \frac{2^5}{3^6}$
  • D $\frac{21}{2^7}$
Solution:
1040 Upvotes Verified Answer
The correct answer is: $\frac{21}{2^7}$
No solution. Refer to answer key.

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