As Many as 20% of All Americans Contract Influenza Each

Multiple Choice

As many as 20% of all Americans contract influenza each year. A sample of 400 randomly selected Americans is chosen and the number with influenza is recorded. Let X represent the number with influenza in the sample. If X = 75 individuals are found to have influenza, what is the sample proportion?

A) 0.0075
B) 0.1875
C) 0.2000
D) 0.8125