TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App † Calc Menu 108
.randNorm(
Description
† (
Calc) Æ 4:Probability Æ 6:.randNorm(
.randNorm([m,s,NUMTRIALS]) ⇒ LIST
Given the mean (m ), standard deviation (s ), and the number of trials (NUMTRIALS),
.randNorm(
(random normal) returns a LIST containing the decimal numbers from the
specific normal distribution.
The default for NUMTRIALS is 1. If NUMTRIALS is not included with .randNorm(, a
scalar random value from the specific normal distribution is returned.
Note: A dot has been placed before this function to distinguish it from a randNorm() function that exists
in the operating system. If you enter
randNorm without the dot or without the prefix, TIStat, you will
access the operating system
randNorm, which does not accept the argument for NUMTRIALS.
Example
1. Move the cursor to the name of the list (list3) where you want to return the decimal
numbers from the specified normal distribution.
2. Press † (Calc) and select 4:Probability. Then select 6:.randNorm(. The .randNorm(
function is displayed in the entry line.
3. Enter the mean, standard deviation, and number of trials (0,1,50). Separate the
arguments with commas and close the expression with a close parenthesis.
4. Press b to compute the data.
m = 0
s = 1
NUMTRIALS = 50
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