Can Swim Cannot Swim Totals
7th Graders __ 15 60
8th Graders __ __ 45
Totals 65 40 105
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?
(2 points)
Can Swim Cannot Swim Totals
7th Graders
___ 15 60
8th Graders
___ 45 ___
Totals 65 40 105
To construct the missing parts of the two-way table, you would need to fill in the blanks with the given totals.
For 7th graders, the total number of students is 60 + 15 = 75. Since there are 60 students who cannot swim, there must be 75 - 60 = 15 students who can swim.
For 8th graders, the total number of students is 45. Since the total number of students who can swim is 65, the number of 8th graders who can swim is 65 - 15 (number of 7th graders who can swim) = 50.
Therefore, the completed two-way table should look like this:
Can Swim Cannot Swim Totals
7th Graders 15 60 75
8th Graders 50 45 95
Totals 65 40 110