a
tvo,
That is not true in this case,
207
The
records from the roof pots are much more
variable than the records from the gummed
paper, not only that,, but they are gener~
ally somewhat higher,
So, I have done the simple atunt
of reducing them to the same variability.
There are two ways of doing that,
In one way we can divide each roof
pot value by the standard deviation of the
roof pot values and*we can divide each gum-
med paper value by the standard deviation of the gummed paper values and we will come out
with a variance of one in each case, and so
the variances will be equal and we will get
thie situation, or, we can let these values
stay as we record them and multiply the gunmed paper values by ea factor which will
equalize the variability between the two,
We have been doing this piecemeal
at various times and we have collected this
data and this factor which we multiply this
by, in order to equalize this (indicating)
4s around 1.6,
Summing up the 88 values that we have
in this group (we actually have 95 weeks in this