Normalcdf – Texas Instruments TI-84 User Manual

Page 377

Chapter 13: Inferential Statistics and Distributions

374

normalpdf(x

[

)

Note:

For plotting the normal distribution, you can set window variables

Xmin

and

Xmax

so that the mean

m falls between them, and then select

0:ZoomFit

from the

ZOOM

menu.

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[,

])

Note: For this example,
Xmin = 28
Xmax = 42
Ymin = 0
Ymax = .2
Xscl = 1
Yscl = .1