On 21 Jul 2002 15:30:34 -0700, [EMAIL PROTECTED] (Linda) wrote: >Do you mean that I need to check the correlation between the birth & >death rates? I have looked at the general pattern of the birth and >death rates and it seems that they are proportional to each other. >What do you mean by means of random variables??
No; I was asking whether knowing the birth and/or death rates at time t=t1 gave any information about the rates at time t=t2. The mean of a random variable is its expected value / first moment / average. . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
