Question

A random sample of 40 people were surveyed about their favorite food. What percent of people surveyed do not prefer fast food?

	Fast food	Seafood	Vegan food
Sample 1	20	13	7
Sample 2	17	19	4

• A. $55\%$
• B. $52.75\%$
• C. $53.75\%$
• D. $57.5\%$

Answer 1

The correct option is C $53.75\%$

	Fast food	Seafood	Vegan food	Total
Sample 1	20	13	7	40
Sample 2	17	19	4	40

Total number of people who do not prefer fast food = People who prefer seafood and vegan food
$=13+7+19+4=43$

Total number of people in all the samples $=40+40=80$

Percentage of people who do not prefer fast food $=\frac{43}{80}\times 100\%=53.75\%$