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Mesmer
Feb3-07, 03:36 PM
Let P(X\leq \15)= 0.3, P(15\less X \leq24)=6 and (P X > 20) = 0.5


I don't understand how I would find this probability: P(15\lessX\leq20

The answer is 0.2.

radou
Feb3-07, 03:45 PM
Are you sure you posted the problem correctly? The probability of an event cannot equal 6, first of all.

Mesmer
Feb3-07, 07:02 PM
You are correct, the problem is not posted correctly. My latex coding is lacking...I wish there were a way a could delete this post.

cristo
Feb3-07, 07:07 PM
Is it meant to be 0.6 by any chance? Thus, is your first equation meant to be P(X\leq \15)= 0.3,\ \ P(15< X \leq24)=0.6,\ \ P(X>20)=0.5, and you want to find P(15< X \leq20)?