Question 13 Marks
In a survey of 100 ladies it was found that 36 like coffee while 64 dislike it.
Out of these ladies, one is chosen at random. What is the probability that the choszen lady (i) likes coffee, (ii) dislikes coffee?
Out of these ladies, one is chosen at random. What is the probability that the choszen lady (i) likes coffee, (ii) dislikes coffee?
Answer
View full question & answer→Total number of ladies surveyed = 100
Ladies who like coffee = 36
Ladies who do not like coffee = 64
Ladies who like coffee = 36
Ladies who do not like coffee = 64
- Probability of choosing a lady who likes coffee $=\frac{\text{Number of ladies who like coffee}}{\text{Total number of ladies}}=\frac{36}{100}=\frac{9}{25}$
- Probability of choosing a lady who dislikes coffee $=\frac{\text{Number of ladies who dislike coffee}}{\text{Total number of ladies}}=\frac{64}{100}=\frac{16}{25}$