Difference between revisions of "Documentation/How Tos/Calc: B function"
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=== Syntax: === | === Syntax: === | ||
| − | <tt>'''B(n; p; | + | <tt>'''B(n; p; k; k2)'''</tt> |
| − | : With <tt>'''n'''</tt> independent trials, each with a probability <tt>'''p'''</tt> of success, <tt>'''B'''</tt> returns the probability that the number of successes will be between <tt>''' | + | : With <tt>'''n'''</tt> independent trials, each with a probability <tt>'''p'''</tt> of success, <tt>'''B'''</tt> returns the probability that the number of successes will be between <tt>'''k'''</tt> and <tt>'''k2'''</tt> inclusive, or if <tt>'''k2'''</tt> is omitted the probability that the number of successes will be exactly <tt>'''k'''</tt>. |
=== Example: === | === Example: === | ||
Revision as of 19:02, 25 April 2008
B
Returns a probability in a binomial distribution.
Syntax:
B(n; p; k; k2)
- With n independent trials, each with a probability p of success, B returns the probability that the number of successes will be between k and k2 inclusive, or if k2 is omitted the probability that the number of successes will be exactly k.
Example:
B(10; 1/6; 2)
- returns approximately 0.29 (29%), the probability that the number four will be thrown exactly twice in 10 throws of a die.
