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f a seed is planted, it has a 80% chance of growing into a healthy plant. If 10 seeds are planted, what is the probability that exactly 2 don't grow?

Respuesta :

Answer:

0.3

Step-by-step explanation:

We can use Bernoulli estimation to solve this. P(g) = 0.8, probability of not growing into healthy plant P(n) = 1-P(g) = 1 - 0.8 = 0.2

Using the Bernoulli approximation:

P(n=2) = 10C2 * P(n)^2 * P(g)^8

P(n=2) = 45 * 0.2^2 * 0.8^8

P(n=2) = 0.30

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