Answer: 20 wins
Explanation:
If you multiply 6 seasons by 21 wins, you get 126 wins. This is the total amount of wins needed in 6 seasons.
Add the wins for the 5 seasons shown:
27 + 18 + 24 + 25 + 12 = 106 wins
126 wins - 106 wins = 20 wins
Therefore, 20 wins are needed in Season 6 for the mean of 6 seasons to be 21 wins.
Check your work:
Add the wins from all 6 seasons and then divide by 6 to find the mean.
27 + 18 + 24 + 25 + 12 + 20 = 126 wins
126 wins / 6 seasons = 21 wins per season