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TI-83 Plus Inferential Statistics and Distributions 426
normalcdf(
normalcdf(
computes the normal distribution probability between
lowerbound
and
upperbound
for the specified mean
m
and standard
deviation
s
. The defaults are
m
=0 and
s
=1.
normalcdf(
lowerbound
,
upperbound
[
,
m
,
s
]
)
invNorm(
invNorm(
computes the inverse cumulative normal distribution function
for a given
area
under the normal distribution curve specified by mean
m
and standard deviation
s
. It calculates the
x
value associated with an
area
to the left of the
x
value. 0
area
1 must be true. The defaults are
m
=0
and
s
=1.
invNorm(
area
[
,
m
,
s
]
)
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