Binomial Distribution - Casio Fx-CG20 User Manual

Binomial Distribution

Example: Simulation of a cube experiment
Calculate the probability that at the 30th dice roll:
a ) 5-times
b ) x-times
a 6 is rolled.
Assistant to Calculate the Binomial Distribution
In the Statistics- application, the assistant to calculate the Binomial
Distribution is located by pressing:
[ F5 ] ( DIST ) [ F5 ] ( BINM )
( DIST, engl. Distribution- Distribution )
The command Bpd is calculated, P ( x ) , Bcd is calculated,
P ( 0 ) +P ( 1 ) +...+P ( x )
Normal Distribution is located with [ F5 ] ( DIST ) [ F1 ] ( NORM )
Note:
Proposed Solution for a
x=5 ( number of successes ) ' N=30 ( number of trials )
p=1/6 ( Probability of success )
The command Bpd is selected with [ F1 ] and values are entered.
Each entry is confirmed with [ ExE ] and the calculation is performed.
Note: The number of successes can be selected from the
function keys as a Variable or a List. The result can be saved under,
"Save Res" ( save results ) in a list.
Pressing [ EXE ] will direct one back to the Entry window, and
by pressing [ EXE ] [ EXE ] one will return to the List editor of the
Statistics application.
Alternative Solution proposed in the RUN-MAT application
The direct entry and calculation in the RUN-MAT application is also
available: [ OPTN ] [ F5 ] ( STAT ) [ F3 ] ( DIST ) [ F5 ] ( BINM ) [ F1 ] ( Bpd )
Near the Binomial Distribution, lies the instructions for the Normal
Distribution, as well as geometrics and hypergeometric equations
that are available.
Binomial Distribution
• Binomial Distribution instructions in the
Statistics application: [ F5 ]
Bpd calculation P ( x )
•
( DIST ) ( BINM )
[ F5 ]
• Bcd calculation of the summed probabilities
P ( 0 ) +P ( 1 ) +...+P ( x )
RUN-MAT application: [ OPTN ] [ F5 ] [ F3 ] ( DIST )
•
[ F5 ] ( BINM )
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