In a survey of 200 ladies, it was found that 142 like coffee, while 58 dislike it. Find the probability that a lady choose at random likes coffee.

Given, total number of ladies = 200

∴ Total number of trails = 200

Let E be the event of getting a lady who likes coffee.

∴Number of trials in which E happened = 142

Hence, the required probability is 0.71.