A particular internet stock had an analysis of returns run over the last 10 years. Results indicated a NORMAL distribution curve and the standard deviation was calculated to be 7.5%, with a MEAN of 10.5%. Which of the following statements is true? urns run over the last to 68% of the expected returns would be negative. ld be negative 95% of the expected returns would fall between 15.0% and 15.0% 68% of the expected returns would fall between 18.0% and all of the abov and 18.0%