You've observed the following returns on Blast It Corporation's stock over the past five years: 19 percent, −23 percent, 31 percent, 18 percent, and −7 percent, respectively. What was the variance of the returns over this period

Bob, an employee at machina corp., is well known among his colleagues because of his temper and impatience. during a heated argument with one of his supervisors, he reacts with hostility. bob's manager calls him in for a discussion and listens to what he has to say about the incident, while treating him with dignity and respect. this scenario can be best categorized as one that used