Gene Green wrote: Yes, Gene, I agree that the person in the street thinks of the arithmetic mean as the "average," and that definition is fixed, which is why I expressed doubt about the concept

You mean 46759? There is no 46795 in the 1940, 1950, or 1953 ORER's. ...and ditto for july 1959 dave </HTML>

Brian I was looking at a drawing but now I can't find it -- but now I think I'd rather have those coil-leaf-coil trucks as found on the DT&I 14000-14299 box cars. This spring package was applied to

Does anyone know of a photo of the DYLX covered hoppers (Dri-Flo types, I believe) BESIDES the one in the Classic Freight Cars book? I'm looking for an image prior to the formation of

Larry posted his comparison spreadsheet showing a straight line fleet-percentage vs observed-percentage for each railroad. I then said that one really needs to compute a standard deviation

Tim, Gould made a lot of trucks. Which one did you have in mind? Brian Leppert Tahoe Model Works Carson City, NV

Soo That correcting my error. I need Spokane, Portland & Seattle can be added to the list. These were ex- GN gons aquired in the '50s and converted to wood chip cars. I am aware of SAL B-5 boxcars

Al, A couple of folks I know that have built these have used the old Cape Line Pilchner Patent truck. These are now available from Bethlehem Car Works, I believe. Chuck Hladik Rutland

Tim O'Connor wrote: Larry, I suspect Tim would have recommended computing the standard deviation of this data set, in order to see how closely these observed differences from the mean values match

Dave Nelson wrote: Larry, there are a couple of errors in that listing and I think you should correct them. First, as the images were taken on the PRR you should not count any PRR cars in the

(and > which it is in a symmetrical distribution). But I have no idea what a > "true average" is. -Does- average always mean the same thing? I learned (correctly, I hope) that "average" could be one

Diversions could be filed by the beneficial owner of the car's lading as shown on the Bill of Lading and reflected on the Waybill that accompanied the car. Up to 3 diversions could be made on a car

"Tom's 1938 Register" was based upon the American Guide Series published during the depression, by the Federal Writers Project of the Works Progress Administration. The State of Iowa guide is a series

Malcolm Laughlin wrote: An average always means the same thing, Malcolm, though in a skewed distribution it will not lie at the same location as the most frequent data, which lay persons

Tony said ========================= I'm OK with the average as the core datum, but recognizing that the average in the car distribution case may be at one side of a skewed distribution orm

Well Mike, knowing that I'm one of the former jailees that you've mentioned, maybe a grace period of one digest would be in order. This list has unreasonable volume to get individual

Mike Brock said a month and a half. What I was trying to say is that during this period of time, the number of appearances by SP box cars is about 2.6 times what the theory predicts.”

There have been a few comments on this topic in regard to waybills and how do we get randomness so that there is the possibility, as Tim O mentioned for example, of having four SFRD reefers on the

block stations that serviced local and major yards in addition to the main lines. Most of the people I worked with all started on the road back in the late 30s and 40s. Working with local and road

Example: To protect their car supply, certain railroads subscribed to an interchange rule that mandated their empty cars could not be loaded on the return trip without their express consent. This was