Sharp EL-9650, Operation Manual, Page: 205 / 373

195
STATISTICS/ REGRESSION CALCULATIONS
for US
[11 cdfbin (] : Finds the probability of a specified range x of a binomial distribution
(cannot be entered using lists, with the exception of success numbers).
Format: cdfbin (trial number, success probability, success number) However, the
success number may be omitted (when the success number is not specified, values
from 0 to the trial number are entered and displayed as list).
<Example 11>
Find the probability of example 9 using range up to “x = 7”.
Key operation:
F 1 1
15
,
0.3
,
7
) ®
[12 pdfpoi (] : Finds the probability density of a specified value x for a Poisson distribu-
tion of mean
µ
.
Format: pdfpoi (mean, value of x)
<Example 12>
Find the probability density of “x = 4”, when the mean of a Poisson distribution is 3.6.
Key operation:
F 1 2
3.6
,
4
) ®
[13 cdfpoi (] : Finds the probability of specified range x for a Poisson distribution of
mean
µ
.
Format: cdfpoi (mean, value of x)
<Example 13>
Finds the probability within the range up to “X = 4”.
Key operation:
F 1 3
3.6
,
4
) ®
, ,
,
,
EL-9650-(07)En (178-196) 8/1/00, 9:08 AM 195