Re: Bimodal distributions

2001-08-31 Thread Robert J. MacG. Dawson
Dennis Roberts wrote: > major mode and the other as the minor mode. > > this is an interesting point but, one we have to be careful about ... in > the minitab pulse data set ... c6 is heights of 92 college students ... IIRC, the difference between male and female mean height is almos

Re: Bimodal distributions

2001-08-31 Thread Robert J. MacG. Dawson
Dennis Roberts wrote: > > At 02:04 PM 8/30/01 -0400, David C. Howell wrote: > >Karl Wuensch asks an interesting question, though I would phrase it > >somewhat more generally. "At what point does a bimodal distribution become > >just a distribution with two peaks?" I thought about this

Re: Bimodal distributions

2001-08-31 Thread Robert J. MacG. Dawson
"Paul R. Swank" wrote: >...In the bimodal case, some refer to the higher "hump" as the > major mode and the other as the minor mode. Followed by Dorian, Ionian, Lydian, Hypodorian, Myxolydian... etc? -Robert Dawson ===

RE: Bimodal distributions

2001-08-30 Thread Dennis Roberts
At 01:22 PM 8/30/01 -0500, Paul R. Swank wrote: >A bomodal distibution is often thought to be a mixture of two other >distibution with different modes. If the distributions have different sizes, >then it is possible to have two or more "humps". I once read somewhere (and >now can't remember where)

Re: Bimodal distributions

2001-08-30 Thread Dennis Roberts
At 02:04 PM 8/30/01 -0400, David C. Howell wrote: >Karl Wuensch asks an interesting question, though I would phrase it >somewhat more generally. "At what point does a bimodal distribution become >just a distribution with two peaks?" or allow me to rephrase as ... when are there enough frequenc

RE: Bimodal distributions

2001-08-30 Thread Paul R. Swank
A bomodal distibution is often thought to be a mixture of two other distibution with different modes. If the distributions have different sizes, then it is possible to have two or more "humps". I once read somewhere (and now can't remember where) that this may be referred to as bimodal (or multimo

Re: Bimodal distributions

2001-08-30 Thread David C. Howell
Karl Wuensch asks an interesting question, though I would phrase it somewhat more generally. "At what point does a bimodal distribution become just a distribution with two peaks?"  Except for a few quite extreme situations, dealing with mixtures of distributions and the like, it will rarely ever b

Re: Bimodal distributions

2001-08-30 Thread Dennis Roberts
hi karl ... i think the answer is yes ... if you want it to have 2 modes the mode is a problematical statistic ... since there is no good definition for it and ... a few frequencies shifting around ... could radically change the "mode" or "modes" in minitab, there is no place where ANY mode is