Answer:
a) Row percentage for dating = 80/440 = 0.182 = 18.2%
b) Row percentage for Cohabiting = 103/428 = 0.241 = 24.1%
c) Row percentage for Married = 147/425 = 0.346 = 34.6%
d) Row percentage for the total category = 330/1293 = 0.2552 = 25.52%
Step-by-step explanation:
The problem becomes easier once it is presented in the clear form as in the attached image.
Calculating the row percentages of obese people = (number of obese people in the category)/(total number of people in the category)
For Dating, number of obese people = 80; Total number of people in the dating category, obese & non-obese = 80 + 360 = 440
Row percentage for dating = 80/440 = 0.182 = 18.2%
For Cohabiting, number of obese people = 103; Total number of people in the Cohabiting category, obese & non-obese = 103 + 325 = 428
Row percentage for Cohabiting = 103/428 = 0.241 = 24.1%
For Married, number of obese people = 147; Total number of people in the Married category, obese & non-obese = 147 + 248 = 425
Row percentage for Married = 147/425 = 0.346 = 34.6%
For the column that has the total number, number of obese people = 330;
Total number of people in that category, obese & non-obese = 330 + 963 = 1293
Row percentage for the total category = 330/1293 = 0.2552 = 25.52%
QED!
