If a seed is planted, it has a 75% chance of growing into a healthy plant.
If 7 seeds are planted, what is the probability that exactly 3 don't grow?
3 answers
241*107
rubbish
There's a 25% chance of not growing. So,
P(3 not) = 7C3 .25^3 .75^4 = 0.17
There's a 25% chance of not growing. So,
P(3 not) = 7C3 .25^3 .75^4 = 0.17
f a seed is planted, it has a 75% chance of growing into a healthy plant.
If 9 seeds are planted, what is the probability that exactly 2 don't grow?
If 9 seeds are planted, what is the probability that exactly 2 don't grow?
1 answer