An advantage of scanner data is that in-store variables like pricing, promotions, and displays are part of the data set

The Central Limit Theorem says that if a number of probability distributions are summed:

A) The standard deviation of the sum equals the sum of the standard deviations. B) The variance of the sum equals the sum of the variances. C) The standard deviation of the sum is greater than the sum of the standard deviations. D) The variance of the sum is less than the sum of the variances.

Which of the following are potential benefits of a 401(k) or 403(b) plan?

I. You can make yourself low-interest loans. II. You can save for retirement. III. Your contributions to the plan are tax-free. IV. Your contributions to the plan are tax-deferred. A) I, II, III and IV B) I, II, and III only C) I, II and IV only D) I and II only