in a survey, editors of a magazine asked 200 people whether or not they smoke and whether or not they…

in a survey, editors of a magazine asked 200 people whether or not they smoke and whether or not they exercise regularly (more than twice a week). the results are summarized in the table below.\n\n| | smoke | do not smoke |\n|--|--|--|--|\n| exercise regularly | 4 | 28 |\n| do not exercise regularly | 54 | 114 |\n\n(a) what percentage of the adults do not smoke?\n\n(b) what percentage of the adults exercise regularly?

in a survey, editors of a magazine asked 200 people whether or not they smoke and whether or not they exercise regularly (more than twice a week). the results are summarized in the table below.\n\n| | smoke | do not smoke |\n|--|--|--|--|\n| exercise regularly | 4 | 28 |\n| do not exercise regularly | 54 | 114 |\n\n(a) what percentage of the adults do not smoke?\n\n(b) what percentage of the adults exercise regularly?

Answer

Explanation:

Step1: Calculate total number of adults

The total number of people surveyed is 200.

Step2: Calculate number of non - smokers

The number of non - smokers is (28 + 114=142).

Step3: Calculate percentage of non - smokers

The percentage of non - smokers is (\frac{142}{200}\times100% = 71%).

Step4: Calculate number of regular exercisers

The number of regular exercisers is (4 + 28 = 32).

Step5: Calculate percentage of regular exercisers

The percentage of regular exercisers is (\frac{32}{200}\times100%=16%).

Answer:

(a) 71% (b) 16%