In a beer taste study involving the ExtraFerm lager beer, the following responses were recorded:
Response Frequency -
Great taste 103 -
Okay taste 46 -
Bad taste 64 -
The probability that a randomly selected beer drinker will NOT find ExtraFerm to be bad tasting is calculated from these data to be:
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A. B. C. D.Explanation
The probability that a randomly selected beer drinker will find ExtraFerm to be bad tasting is estimated from the above data as 64/(64 + 46 + 103) = 0.3. Therefore, the probability that a randomly selected beer drinker will NOT find ExtraFerm to be bad tasting equals 1 - 0.3 = 0.7. We could also have calculated this probability as (103 + 46)/(64 + 46 + 103) = 0.7 Note that given a frequency distribution, the estimated probability of a particular class/event occurring equals the relative frequency of that class.