SOLUTION: If a seed is planted, it has a 85% chance of growing into a healthy plant. If 12 seeds are planted, what is the probability that exactly 4 don't grow?

SOLUTION: If a seed is planted, it has a 85% chance of growing into a healthy plant. If 12 seeds are planted, what is the probability that exactly 4 don't grow?

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Question 1100789: If a seed is planted, it has a 85% chance of growing into a healthy plant.
If 12 seeds are planted, what is the probability that exactly 4 don't grow?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
That is the same that 8 do grow.
12C8*0.85^8*0.15^4=0.0683
note
12C4*0.15^4*0.85^8 gives the same answer.
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