The Probability That Someone Will Prefer Coke Over Pepsi Is

Multiple Choice

The probability that someone will prefer Coke over Pepsi is 0.56.A researcher asked 90 people which soda pop they preferred, and used the normal approximation to the binomial with a correction for continuity, what would be the probability at least 50 preferring Coke?

A) 0.615
B) 0.507
C) 0.560
D) 0.900
E) 0.576