8 ice hockey teams competed in the quarterfinals of a national championship. The dot plat
shows the number of goals scored by each team. Each dot represents one team.
+
+
2
3 4 5
Number of Goals
a What was the total number of goals scored by the 8 teams?
14
b What was the mean number of goals scored by those teams?
14:43
9 The mean of five numbers, 3, 7, 9, 12, and x, is 8. Find the value of x.