Do Americans prefer name-brand milk or store brand milk? A survey was conducted by Harris Poll Interactive, Inc. in November 2014. Suppose the results, based on 1,138 females and 1,138 males, were as follows:

If an American is selected at random, what is the probability that he or she
a. Prefers name-brand milk?
b. Is male and prefers name-brand milk?
c. Is male or prefers name-brand milk?
d. Explain the difference in the results in (b) and (c).

Transcribed Image Text:

GENDER Total Female 341 Male PREFERENCE Name-Brand Milk Store Brand Milk Something Else Total 319 1,366 148