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, then the sample proportion has approximately an

A) N(0.1875, 0.0195) distribution.
B) N(0.1875, 0.0200) distribution.
C) N(0.2000, 0.0195) distribution.
D) N(0.2000, 0.0200) distribution.