Casio FX-CG20, Руководство пользователя

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37
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)
Note: Normal Distribution is located with
[F5]
(DIST)
[F1]
(NORM)
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]
(DIST)
[F5]
(BINM)
• Bpd calculation P(x)
• Bcd calculation of the summed probabilities
P(0)+P(1)+...+P(x)
• RUN-MAT application:
[OPTN] [F5] [F3]
(DIST)
[F5] (BINM)