Question

Rafael is in charge of planning a reception for 3200 people. He is trying to decide which snacks to buy. He has asked a random sample of

people who are coming to the reception what their favorite snack is. Here are the results.
Favorite
Snack
Brownies
Pretzels
Potato chips
Other
Based on the above sample, predict the number of the people at the reception whose favorite snack will be brownies. Round your answer to
the nearest whole number. Do not round any intermediate calculations.
Number of
People
27
19
74
60

Answer 1

To predict the number of people whose favorite snack is brownies, we need to use the proportion of people in the sample who said brownies were their favorite and apply it to the total number of people attending the reception.

The total number of people in the sample is:

27 + 19 + 74 + 60 = 180

The proportion of people in the sample who said brownies were their favorite is:

27/180 = 0.15

To predict the number of people at the reception whose favorite snack will be brownies, we can multiply the total number of people attending the reception by the proportion of people in the sample who said brownies were their favorite:

3200 x 0.15 = 480

Therefore, we can predict that approximately 480 people at the reception will have brownies as their favorite snack.