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Asked by tonie

If a seed is planted, it has a 75% chance of growing into a healthy plant.

If 11 seeds are planted, what is the probability that exactly 2 don't grow?
9 years ago

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Answered by Reiny
prob(success) = 3/4
prob(fail) = 1/4

prob(2 of 11 to fail)
= C(11,2)(1/4)^2 (3/4)^9
= .258

check my arithmetic
9 years ago
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If a seed is planted, it has a 75% chance of growing into a healthy plant.

If 11 seeds are planted, what is the probability that exactly 2 don't grow?

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