Step: Find the probability that the ticket is yellow
Given:
A box contains 3 yellow, 4 green and 8 blue tickets.
Total number of possible outcomes =3+4+8
=15
Favourable outcomes that the chosen ticket is
yellow = 3
Probability that the ticket is yellow
=Number of favourable outcomesTotal number of outcomes
=315
=15
Hence, the probability that the ticket is yellow is 15 .