A Company Is Interviewing Applicants for Managerial Positions

Multiple Choice

A company is interviewing applicants for managerial positions.They plan to hire two people.They have already rejected most candidates and are left with a group of 7 applicants of whom 6 are women.Unable to differentiate further between the applicants,they choose two people at random from this group of 7.Let the random variable X be the number of men that are chosen.Find the standard deviation of X.

A) σ = 0.49
B) σ = 0.42
C) σ = 0.45
D) σ = 0.20
E) σ = 0.55