Calculator User Manual

Chapter 13: Inferential Statistics and Distributions 373

Note: L1â99 and 1â99 specify infinity. If you want to view the area left of upperbound, for

example, specify

lowerbound= L1â99.

normalpdf(

normalpdf(normalpdf(

normalpdf(

normalpdf( computes the probability density function (pdf) for the normal distribution at a

specified

x value. The defaults are mean m=0 and standard deviation s=1. To plot the

normal distribution, paste

normalpdf( to the Y= editor. The probability density function

(pdf) is:

B: binomcdf(

Binomial cumulative density

C: poissonpdf(

Poisson probability

D: poissoncdf(

Poisson cumulative density

E: geometpdf(

Geometric probability

F: geometcdf(

Geometric cumulative density

DISTR DRAW

fx()

2πσ

--------------

x µ–()

2σ

-------------------–

–

σ 0>,=