Recent content by jayknight

hmm..is it just the positive part of the probability distribution curve?

Hey Matt. Thanks for that. But I still am not very clear about the distribution situation. Isnt the the distribution got using the probability distribution function? And also..the modulus of x-y...I can't picture the modulus of a distribution fn. If the fn is on the positive subaxis inthe...

According to my calculations,it is a stright line passing thru x=X1 and y=-X2.For the modulus of this...Id say the y-intercept becomes y=X2. However the fact that the question suggests the shape of normal distribution confuses me.According to my diagram,the fn is an inverted version of the...

For the record,this is the question. Suppose X1 and X2 are independent normal variables with mean m and standard deviation s. Define the difference D = X1 – X2 Remember that any linear combination of normal variables is itself normally distributed, so it follows that...

Hi guys...I am having big trouble finding the range of a function dependent on 2 variables. The function is D=X1-X2. R=|D| How do you find the range of R and D?Is the range of R from 0 to infinity and that of D from - infinity to infinity?