Q. 5

In a survey of 200 ladies, it was found that 142 like coffee, while 58 dislike it.

Find the probability that a lady chosen at random

(i) likes coffee, (ii) dislikes coffee.

Answer :

Total number of ladies: 200


Number of ladies who like coffee: 142


Number of ladies who dislike coffee: 58


Probability P() =


(i). Let p(Coffee) be probability of ladies who like coffee


P (Coffee) =


P (Coffee) = = 0.71


(ii). Let p(No Coffee) be probability of ladies who dislikes coffee


P (No Coffee) =


P (No Coffee) = = 0.29


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