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Quick Math Question...

Q

QurazyQuisp

Platinum Member
So, I'm looking back at quizzes for my stats final, and this is part of a problem I got wrong... (We are doing Discrete Random Variables, this is in the form of P(|X-5|<=2.4) Can anyone verify if this is correct (re-worked)? (I don't remember this stuff it's been 7/8+ years since I've had to touch it)

|X-5|<=2.4:

-2.4+5 <= X <= 2.4+5

?

The above has nothing to do with probability/stats, only about equalities...
 
...aka x is between 2.6 and 7.4? Yes that is correct.

EDIT: If you want to think about it in terms of what the question is asking, it's looking at the difference between X and 5. So you're looking at the probability that x is no more than 2.4 above or below 5.
 
Ah ok, thanks. I was fine with the non absolute value ones, I just completely forgot how to deal with the inequalities.
 
I'm in East Lansing now, and we've been getting snow pretty consistently for the past two weeks or so, however it's nothing like what my parents have been getting in Rockford. I know they got about a foot last weekend when we maybe got 4 inches here in EL...
 
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