Question

a survey of 500 randomly selectedadults aged 25 to 49. They were surveyed on their preference between two brands of pasta sauces. Inanother survey of people aged 25-49, a total of 400 people preferred Sauce B. Based on the databelow, how many of those 400 people would be expected to be age 40-44?

Answer 1

In the data below we have that

total people preferred Sauce B is 302

people 40-44 -----> 63 people

In the other survey

total people preferred Sauce B is 400

people 40-44 ------> x

Applying proportion

63/302=x/400

x=(63/302)400

x=83.4

therefore

83 of those 400 would be expected to be age 40-44