Answer:
Swim Club A: 30
Swim Club B: 50
Step-by-step explanation:
Mean = Average of the numbers.
1. Add up all the numbers.
2.Divide by how many numbers there are.
Swim Club A:
- 15 + 20 + 25+ 30 + 35 + 40 + 45 = 210
- 210 ÷ 7 = 30
- Mean: 30
Swim Club B:
- 35 + 40 + 45 + 50 + 55 + 60 + 65 = 350
- 350 ÷ 7 = 50
- Mean: 50