170 Chapter 5 Let’s Learn About Taylor Expansions!
So many...wasted
coasters...
We, we now
convertthe unit into
n
2
since x is away
from the center
n
2
.
n
2
is the standard
deviation. If you
don’t know statistics,
simply regard it as a
magic word!
*
* Standard deviation is an index we use
to describe the scaering of data.
Ig...nored...
Abracadabra!
In other
words,
in this way, we
change the variable.
The new one, z, is the
number of standard
deviations away
from the center.
We set
nn
zx
22
+=
and substitute
z in h
n
.
We take a
ln of
each side.
*
Now we n
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