A survey of 250 girls of a school was conducted and it was found that 105 girls like tea while 145 dislike it . Out of these girls , one girl is selected at random .
What is the probability that the selected girl (i) likes tea , (ii) does not like tea ?

Explanation

Total number of girls = 250 .
Number of girls who like tea = 105.
Number of girls who dislike tea = 145.
(i) Let `E_(1)` = event that the selected girl likes tea . Then .
P(selected girl like tea)

= `P(E_(1)) = ("number of girls who like tea")/("total number of girls") = (105)/(250) = 0.42`
(ii) `E_(2)` = event that the selected girl dislikes tea . Then ,
P(selected girl dislikes tea)
= `P (E_(2)) = ("number of girls who dislikes tea")/("total number of girls") = (145)/(250) = 0.58` .