conditional frequency

conditional frequency

[kən′dish·ən·əl ′frē·kwən·sē]
(statistics)
If r and s are possible outcomes of an experiment which is performed n times, the conditional frequency of s given that r has occurred is the ratio of the number of times both r and s have occurred to the number of times r has occurred.
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The conditional frequency analysis obtained imitation, similar reaction, and transmission of signal effects.
A Study of Information Effects in the Spanish Stock Exchange
The expected conditional frequency of an incorrect answer on the final exam, given the incorrect answer on the pretest, is therefore (.20)(.75) = 0.15.
This procedure is repeated for each of the questions analyzed, using the actual distributions of pretest results to compute the expected conditional frequency for that question.
Pretesting Students to Improve Teaching and Learning

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