fx-991EX Quick Start Guide
26
A probability of 73.7% is displayed.
Because
x
= 1 was entered, the calculator calculated P(≤ 1 six is
rolled). This provides a great opportunity to use the
complement
of an event: P = 1 – 0.737 = 0.263 = 26.3%.
To display the probabilities of obtaining
any
number of sixes in 6
rolls, press
i
1
(Select Type).
This time, choose
4
(Binomial PD).
Once the final value has been entered, press
p
again to end
the data entry process.
Notice, the values of
N
and
p
are preserved from the cumulative
probability calculation.(
N
and
p
are global calculator variables.)
Enter the values 0, 1, 2, 3, 4, 5, and 6 into the “x” column (which
represents number of successes). Press
p
after each input.
Because the calculation is for probabilities for several different
numbers of successes, select
1
(List).
DISTRIBUTION
