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?

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