If a seed is planted, it has a 70% chance of growing into a healthy plant.
If 7 seeds are planted, what is the probability that exactly 1 doesn't grow?
Here What I did I thought its premutation but some reason I got that wrong, I multiple by (0.10) and (0.70) of the seeds I still got it wrong. Where did I got it wrong
No, this is an example of Binomial Distribution.
You are planting 7 plants, and you want the prob that exactly 1 does not grow.
Suppose it is the 3rd plant which did not grow.
GGNGGGG, where G stands for grow, N for not grow.
That specific probability is
but it could have been 7 different arrangements of G's and N
GGGGGNG is another case
So you the prob as
= appr .247
C(7,1) (.7)^6 (.3) = appr .247
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