Sanderson M. Smith
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THE BINOMIAL SETTING
(MINI-PROJECT BY ANNE)
Anne's chart provides describes a description of the binomial setting:
If k = 0,1,2,3,..., n, then
Probability (k successes) = nCkpk(1-p)n-k
Anne provides an example problem:
At Herky, Inc., a company with a large number of employees, approximately 25% of the workers are vegetarians. If a group of 12 Herky, Inc. employees is randomly chosen, what is the probability that the group contains exactly 5 vegetarians.
Anne's displayed answer is 12C5(.25)5(.75)7 = 0.1032, or about 10%.
Note: Using the TI-83, one can calculate binompdf(12,.25,5) = .1032.
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