Use the Following Information to Answer the Question

Use the following information to answer the question. The mean age of lead actors from the top ten grossing movies of 2007 was 36.4 years with a standard deviation of 9.87 years. Assume the distribution of the actors ages is approximately unimodal and symmetric.
-Between what two values would you expect to find about 68% of the lead actors ages?

A) 16.66 and 56.14 years
B) 6.87 and 66.01 years
C) 26.53 and 46.27 years
D) None of these