A box contains discs which are numbered from . If one disc is drawn at random from the box, find the probability that it bears a two-digit number
Step : Find the total number of outcomes and favorable number of outcomes
The total number of discs
Since, to are single digit numbers.
So, total digit numbers are
Total number of discs having two-digit numbers
Step 2: Find the required probability using the classical definition of probability
Hence, the probability of getting a two-digit number is