Question:
If in a binomial distribution n=4 and P(X=0)=dfrac1681, then P(X=4) equals
If in a binomial distribution n=4 and P(X=0)=dfrac1681, then P(X=4) equals
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Use P(X=0)=(1-p)ⁿ to find p.
Updated On: Mar 20, 2026
- \(\dfrac{1}{16}\)
- \(\dfrac{1}{81}\)
- \(\dfrac{1}{27}\)
- (1)/(8)
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The Correct Option is B
Solution and Explanation
(1-p)⁴=(16)/(81)⟹ 1-p=(2)/(3)⟹ p=(1)/(3)
P(X=4)=p⁴=(1)/(81)
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