1. Jack and Jill, two finance majors, were arguing over whether to use standard deviation or variance when discussing a stock's monthly returns. Jack claimed variance was more appropriate, but Jill thought standard deviation made more sense. Jack and Jill went up to Ms. Hill who sided with Jill, offering the following support: a. variance involves only those returns which fall below expected returns b. standard deviation provides a measure of dispersion in the same units as expected returns c. compared to variance, standard deviation focuses more on bad outcomes, which are the primary concem of risk averse investors d. variance is more difficult to calculate than standard deviation e standard deviation equals the expected value of squared deviations from the mean. which is more intuitive than variance