For n = 8 and r = 0.19, what is P(X = 4)? P(X= 4) =...

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Question

For n = 8 and r = 0.19, what is P(X = 4)? P(X= 4) = (Round to four decimal places as needed.)

math Statistics-And-Probability

Answer 1

Answer #1

Given that, n = 8 and π = 0.19

Here, X ~ Binomial (n = 8, π = 0.19)

We want to find, P(X = 4)

P(X = 4) = ⁸C₄ * (0.19)⁴ * (1 - 0.19)^8-4

=> P(X = 4) = 70 * (0.19)⁴ * (0.81)⁴

=> P(X = 4) = 0.0393

Answer 2

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