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@CliffSedge
I have a table here that I don't quite understand
x 0 1 2 3 4 5
P(x) 0.237 0.396 0.264 0.088 0.015 0.001
x= # of prisons out of 5 on parole who become repeat offenders.
What is P(x)? and why does it add up to 1?
 one year ago
 one year ago
@CliffSedge I have a table here that I don't quite understand x 0 1 2 3 4 5 P(x) 0.237 0.396 0.264 0.088 0.015 0.001 x= # of prisons out of 5 on parole who become repeat offenders. What is P(x)? and why does it add up to 1?
 one year ago
 one year ago

This Question is Closed

CliffSedgeBest ResponseYou've already chosen the best response.1
If they add up to 1, those could be probabilities or proportions.
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
Criminal Justice: Parole USA Today reported that approximately 25% of all state prison inmates released on parole become repeat offenders while on parole. Suppose the parole board is examining five prisoners up for parole. Let x= number of prisoners out of five on parole who become repeat offenders. The methods of Section 5.2 can be used to compute the probability assignments for the x distribution.
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
so x from 0 to 5 are not "the prisoners"
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
I guess I don't understand what x is...sigh
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
It is a little strangely worded, but it says that x is number out of 5, so x itself is a proportion.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
e.g. x=3 means 3 out of the 5 prisoners up for parole will be repeat offenders.
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
\[\frac05\] why is there are chance for repeat offense?
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
*shrug* that's just what they are measuring here.
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
so when no one is on parole the probability or reoffending is 0.237? That's what they're trying to tell me?
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
No, it's saying that for every 5 prisoners out on parole the probability that 0 of them will offend again is 0.237
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
OOHHHHHH....LOL! That makes much more sense! haha
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
5 are out on parole at all time I guess
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
It's just an average 'per 5' basis. There could be 100 parolees, so x=3 means 60 out of 100.
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
the probability that 5/5 parolees will reoffend is very slim? highly unlikely?
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
Yeah, 0.001 is pretty low, 1in1,000 chance, but if there are 5,000 parolees, then that's practically a sure thing.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.1
(Practically a sure thing to get 5 out of 5,000, not 5,000 out of 5,000 that is)
 one year ago

MathSofiyaBest ResponseYou've already chosen the best response.0
Yep makes sense. Thank you once again!
 one year ago
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