Well, This time only for math genius!!!

[Sweetness]

This is the first question:

http://img195.imageshack.us/img195/2949/64542292.jpg

This one include three questions

http://img268.imageshack.us/img268/1953/345x.jpg

 

Let's show work out =)

Good Luck.

[the tree]

I promise I'll post something more useful once I've had breakfast, but for now read the rules specifically those regarding homework help.

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Consecutive posts merged

Okay, okay, general hints.

 

2.

[hide]All you need to know is that out of the 457 women, 60+68 of them are smokers.[/hide]

 

3.

[hide]If Pr( X ) = x then Pr( not(X) ) = 1-x[/hide]

 

4.

[hide]There are seven cards, how many of them show a 4 or an 8?[/hide]

 

5.

[hide]How many letters in the first set appear in the second, and how many don't?[/hide]

[Sweetness]

At first thank for your interest to reply.

I don't want only a solutions for this I want provide step-by-step how you arrived to the correct answer!

[the tree]

Sure enough we're not going to give you the final answer just like that, but giving the rest isn't much better until you demonstrate that you've done enough of the work yourself to learn something.

[DJBruce]

I would suggest you review some basic princples of probablity, as all of these questions are very basic.

 

http://www.mathgoodies.com/lessons/vol6/intro_probability.html

 

http://mathforum.org/dr.math/faq/faq.prob.intro.html

[Sweetness]

Thank you DJBruce.

 

The Tree:), I already have the answer, but I don't know how that arrived to it so I want to open discuss to provide it step-by-step

[Bignose]

Thank you DJBruce.

 

The Tree:), I already have the answer, but I don't know how that arrived to it so I want to open discuss to provide it step-by-step

 

Sweetness,

 

the point is that the forum members aren't just going to provide it for you. We encourage you to do your own work.

 

Why don't you post what steps you do know and we'll comment on that. Or, at least post your ideas about what the steps may or may not be and we'll help talk through that.

 

What we won't do is spoon feed you answers.

[SH3RL0CK]

Thank you DJBruce.

 

The Tree:), I already have the answer, but I don't know how that arrived to it so I want to open discuss to provide it step-by-step

 

How did you get the answer without knowing how you got it?