The answer is 4. Anybody can see that.

Ooops. That was supposed to show up before you posted the problem. :-)

Don't know. I'm stumped.

1/2

You know that P(A&B) = P(A) + P(B) - P(A or B)
Plug and chug.

whoops. also meant to go before problem appeared

^I DID...FOR 45 MINUTES...

I couldn't figure one out that fit for 1/8 and 5/6! :(

I tried 1/2...that was the first one I tried...but it didn't work for 5/6...

Tough curriculum.

P(B) = 1/8 - 1/4 + 5/6 = 7/12

Venn Diagrams help a ton with this sort of question.

P(A) = 1/4.

P(A or B) = 5/6

P(A & B) = 1/8

Find P(B)

But without using them, here's a solution

P(A&B) = P(A) + P(B) - P(A or B)

1/8 = 1/4 + P(B) - 5/6
P(B) = 17/24

dubmdell, 1 point for effort, but evidently you aren't very good at fractions. My calculator is better. :)

Thank you Gobble for correcting my answer. Did it on the road and in my head. Forgot the 1/8 when I found a common denominator. =P

Obi, you must be trolling...

Beyond the probability theory that you have admitted to knowing, surely you must understand the basic algebra and fractions to finish this problem.

that was a fail tbh

^Nope, yebellz:

I freely admit to being just THAT bad at math...for what it counts, I really did try...

Got the standard deviation stuff, and all that--

But couldn't figure that one out. Honestly *shrugs*

obi, don't worry about the haters, and above all, stop telling yourself you suck at math. Anybody with your intelligence can learn math. It's a mental block. Really. Stop telling yourself this and just start learning math.

I've found that fractions are a lot harder to handle these days since for years I've viewed everything as a decimal. I had to sit down and think about my son's fourth grade math fractions homework before explaining it to him. But I could whip off a lot of advanced math things relatively quickly. I think it's just that we aren't used to using fractions very much outside grade school.

Actually, SD, we mathematicians use fractions a lot more than decimals. I think it just depends on your field.

@semck83:

Thanks, though I don't think it is just a mental block thing...

I'm not really putting myself down when I say I'm bad at math, or searching for sympathy:

But hey, when I'm as freely verbose and outspoken as I am, PARTICULARLY on matters where I repeatedly champion "intellect" and "merit" as being the answer...

I'd seem to be something of a hypocrite if I didn't own up to the field where I'm lacking in those facets and faculties. :)

My SISTER is the Math major, she's the one with the TI-84x calculator and she took Calculus B/C before graduating HS, and just now starting college is doing even more math...

On the flip side, she took one English class and was done (she did well, just not her thing, all the writing and exploring abstract themes and especially all the talking...she's like an inversion of all my characteristics.) :)

That's just how it goes--

Maybe I'll figure it out, in old age, but for now, I really just want to get done with Stats and just take my PoliSci and English classes and maybe a language class.

It's just a different way of thinking, and for whatever reason--and my sister's actually probably smarter than I am, I've said it before to her:

"Janie" I said--not her real name, for obvious reasons--"Janie, you know, you're sort of like Mycroft Holmes to my Sherlock...they both admit Mycroft's the smarter one and the more reserved one, but Sherlock has more energy and is far more aggressive in his line of work..."

"Bill,"--again, not my name--"please...I do not care."

;)

simon i think you and i let webdip influence our real lives way too fucken much lmao

...who's simon?

President Eden is Simon
Simon says "take some damn math to open up your graduate school choices."

Whatever Simon says, is true.

Whoops wrong thread.

Idgaf yolo