A survey of 200 people was conduct about their preference of visiting various pavilions.

Find the probability that selected person visited

(i) both good living and Delhi pavilion.

(ii)only defence pavilion.

(iii)only toy pavilion.

(iv)both toy and defence pavilion.

∵ Total numbers of people = 200

∴ Total numbers of trial = 200

(i) Let E1 be the event of selected person visited both good living and Delhi pavilion.

Then, the number of trial in which E, happened = 95+45 = 140

(ii) Let E2 be the event of selected person visited only defence pavilion.

Then, the number of trials in which E2 happened = 20

(iii) Let E3 be the event of selected person visited only toy pavilion.

Then, the number of trials in which E3 happened = 40

(iv)Let E4 be the event of selected person visited both toy and defence pavilion.

Then, the number of trials in which E4 happened = 40 + 20 = 60