I have literally no idea how to sketch that
At least I think that's the sort of thing the question's aiming at...
John and Jane have arranged to meet at a given time, and each, independently, will be late by an amount of that time that is exponentially distributed with parameter . Let and denote the amount of time that John and Jane are late respectively.
Suppose that we are interested in the length of time that Jane arrives before John, that is, in . For , show that
Seriously do feel like this isn't all that complicated, but I just keep hitting a wall.
I attached the past paper this question comes from - it's question B6, part (b), part (ii).
Wow, you're a jerk. I love how you asked that question, then presumed you knew the answer...
I thought you meant sketch the thing.
So how's about, instead of getting insulting, you just walk me through it huh? I just want someone to show me how to do it in full; that's how I learn. Not by being suggested things then being patronised when I don't get it.
I don't know where you're getting the 2 from, either, so maybe you could explain that?
Yeah, you are the jerk. I haven't tried to help anyone on this site 'cause I can't, all of my posts were me asking for help, so why would I be thanked for that?
I thank everyone who helps me, but you didn't really help, so I didn't. No need to cry about it. You'd think that if you were a teacher you'd be better at helping. If you didn't want to help in the first place you really shouldn't have posted at all.