What us the probability that 4 out of 8 dolphins are cured when treated with an antibiotic that cures 98 percent of all dolphins?

What us the probability that 4 out of 8 dolphins are cured when treated with an antibiotic that cures 98 percent of all dolphins?
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1 Answer

Answer :

pr(exactly 4 out of 8 cured) = ₈C₄ × (98/100)⁴ × (1 - 98/100)⁴ =103305233920/10000000000000000≈ 0.00001
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