Solution:

When a die is thrown, the possible outcomes are 1,2,3,4,5,6.

Number of possible outcomes = 6

(i) Let E be the event of getting an odd number.

Outcomes favourable to E are 1,3,5.

Number of favourable outcomes = 3

P(E) = 3/6 = ½

Hence the probability of getting an odd number is ½.

(ii)Let E be event of getting a number less than 5.

Outcomes favourable to E are 1,2,3,4

Number of favourable outcomes = 4

P(E) = 4/6 = 2/3

Hence the probability of getting a number less than 5 is 2/3.