Statıstıcs I Deneme Sınavı Sorusu #840744
Which of the statements below is correct?
I In classical probability, all the outcomes have the same chance of happening.
II In empirical probability, the experiments are repeated many times and the observed outcomes of the event we are interested in is counted.
III When it is not possible to observe the outcomes of events, the researcher applies the researcher assigns a suitable value as the probability of the event.
IV It is not appropriate to use personal judgement to assign the probability.
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I and II |
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II and III |
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II, III and IV |
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I, II and III |
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II, III and IV |
In the classical probability approach to assign a probability to an event, the assumption is that all the outcomes have the same chance of happening.
The empirical probability uses the relative frequencies to assign the probabilities to the events. The empirical probability is based on experiments. In order to find the probability of a specific event, the experiments are repeated many times and the observed outcomes of the event we are interested in is counted.
Sometimes it may not possible to observe the outcomes of events; therefore, the researcher may assign a probability to an event. In subjective probability approach, the researcher assigns a suitable value as the probability of the event. Therefore, a personal judgement comes in to play to assign the probability. This approach is not favorable method to assign probability, but sometimes if there is no previous knowledge on the subject then the researcher may assign a subjective probability as a starting point. Once enough information about the probability of the event is collected then the researcher may revise this initial subjective probability.
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