walker Posted June 18, 2008 Report Share Posted June 18, 2008 (edited) hello, sorry to post up another exam question, but i cant find the solution anywhere, its part iii) (i know you need the tables to work out the answer, but i want the expression needed) i know its not complicated, i just can't see it! cheers, Andrew Edited June 18, 2008 by walker Quote Link to comment Share on other sites More sharing options...
Diz Posted June 18, 2008 Report Share Posted June 18, 2008 I did A-level maths (stats) so will help you if i can...was a while ago. Whats the question mate, cant seem to see it on my computer Quote Link to comment Share on other sites More sharing options...
Tomm Posted June 18, 2008 Report Share Posted June 18, 2008 Can't help really - I'm just curious. Where it says X~N(3, 0.01), does that mean that X is normally distributed with a mean of 3 and a standard deviation of 0.01? EDIT: Question 3 is a bitch. Can't get my head around that at all. I'm sure there's some clever way of working it out though... Quote Link to comment Share on other sites More sharing options...
walker Posted June 18, 2008 Author Report Share Posted June 18, 2008 had the exam this afternoon, thankfully, the hard bit in part iii) wasn't asked, the other bits were easy. Yeah, thats what it means, so you need to standardise the distribution to N(0,1) by using the equation z=(X-mean)/stnd dev Quote Link to comment Share on other sites More sharing options...
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