#1 According to the 68-95-99.7 rule. what percent of the population are between 1 standard deviation below the mean and 2 standard deviations above the mean? *The answer is not 82 for the record*

#2 According to investment Digest("diversification and Risk/Reward relationships", Winter 1994, 1-3), the mean of the annual return for common stocks from 1926 to 1992 was 16.5% and the standard deviation of the annual return was 19%. What is the probability that the stock returns greater than 17%? *The answer is not .510 for the record*