A team plays 50 matches in a national league. Its probability of winning is 0.5, and that of losing is 0.3. Find the estimated number of tied matches.
Step 1: Find the probability of a tie match.
The sum of all possible outcomes for an event is 1. So, to find the probability that a game is a tie match, subtract the probability of winning and the probability of losing from 1.
Step 2: Find the estimated number of tie matches.
Multiply the number of matches by the probability that a game is a tie match.