1. At an college, gpa have a distribution that is symmetric with a mean of 2.7 and a standard deviation of 0.4 . What is the of gpa’s from one standard deviation below the mean to one standard deviation above the mean ?2. The mean age of lead actors from the top ten grossing movies of 2011 was 29.6 years with a standard deviation of 6.35 years. Assume the distribution of the actors ages approximately symmetric. Between what values would you expect to find about 68% of lead actors ages ?