TI-83 Plus Inferential Statistics and Distributions 433
geometpdf(
geometpdf( computes a probability at x, the number of the trial on which
the first success occurs, for the discrete geometric distribution with the
specified probability of success p. 0p1 must be true. x can be an
integer or a list of integers. The probability density function (pdf) is:
,2,1,)1()( 1=−= −xppxf x
geometpdf(p,x)
geometcdf(
geometcdf( computes a cumulative probability at x, the number of the trial
on which the first success occurs, for the discrete geometric distribution
with the specified probability of success p. 0p1 must be true. x can be
a real number or a list of real numbers.
geometcdf(p,x)