The table shows data for seventh and eighth graders who can and cannot swim. How would you construct the missing parts of the two-way table?

Can Swim Cannot Swim Totals
7th Graders
15 60
8th Graders
45
Totals 65 40 105

1 answer

To construct the missing parts of the two-way table, we need to fill in the blanks with the missing data.

For 7th graders:
- Can Swim: 15
- Cannot Swim: 60
- Total: 75

For 8th graders:
- Can Swim: 50 (65 total - 15 7th graders)
- Cannot Swim: 35 (40 total - 5th graders)
- Total: 85

Putting it all together:

Can Swim Cannot Swim Totals
7th Graders 15 60 75
8th Graders 50 35 85
Totals 65 40 105