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#1 Re: Help Me ! » discrete mathematics? » 2010-09-30 10:15:17
Seems a little trivial but
n=1 has only one solution for a and b
1*1=1
#2 Help Me ! » Evaluating a sum » 2010-09-30 09:54:34
- Candide
- Replies: 3
Hey,
I have been working on this problem for quite a while, but can't find a solution:
I'm looking for a solution of P. I'd appreciate any hints or suggestions!
#3 Re: Help Me ! » Dear All help me to resolve problem » 2010-09-30 09:42:37
This question is about conditional probabilities.
First step is to see what you have:
P(latex)=0.75
P(rollers | latex)=0.6
P(rollers | semigloss)=0.3
2nd step is too determine what is asked for:
P( latex | roller) = ?
According to Bayes theorem:
Since the value of P(S) is not given, we have to make an assumption: Every customer buys either latex or semigloss plaint. Therefore P(semigloss)=P(S)=1-P(L)=0.25.
The probability that the paint in latex is then 85.7%.
Hope this is correct. 
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