Solution 34600: Computing a Poisson PDF and Poisson CDF on TI-84 Plus C Silver Edition.
How do I use the poissonpdf( ) or possioncdf( ) command on a TI-84 Plus C Silver Edition?
The command poissoncdf( computes a cumulative probability at x for the discrete Poisson distribution with a specified mean Ã. Please note that à must be any real number that is greater than zero; x may be any real number or a list of real numbers. The syntax is as follows:poissoncdf(Ã, x)
For example, given Ã=6 and x=10 find the probability for the discrete Poisson distribution:
Example 1:
• Press [2nd] [DISTR].
• Press [ALPHA] [C].
• Press [6] [Enter] [1] [0] [ENTER].
• Highlight Paste and press [Enter].
• Press [ENTER] again.
Example 2:
Given Ã=.126 and x={0,1,2,3} find the probability for the discrete Poisson distribution:
• Press [2nd] [DISTR].
• Press [ALPHA][D].
• Press [.] [1] [2] [6][ENTER].
• Press [2ND] [{ ] [0] [,] [1] [,] [2] [,] [3][ }] [ENTER].
• Highlight Paste and press [ENTER].
• Press [ENTER] again.
Please see the TI-84 Plus C Silver Edition guidebook for additional information.