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 do

Question

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?

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Adeline 2 weeks 2021-10-01T20:15:31+00:00 1 Answer 0

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    2021-10-01T20:16:52+00:00

    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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45:7+7-4:2-5:5*4+35:2 =? ( )