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# S1 question.. Need help please

Maths and statistics discussion, revision, exam and homework help.

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1. S1 question.. Need help please
Bob has 10 seeds. The probability of one of them germinating is 0.15..

Find the probability exactly 5 of them germinate..

What I did

P(x=0) +P(x=1) +P(x=2) +P(x=3) +P(x=4) +P(x=5)

I did the work out using the nCr method..

and the answer i got was wrong ..

What did i do wrong?
Last edited by Abed1993; 19-04-2012 at 18:15.
2. Re: S1 question.. Need help please
I think i may found out..

was i meant to do

P(x=5) +P(x=6) +P(x=7) +P(x=8) +P(x=9) +P(x=10)

??

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Last updated: April 19, 2012
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