The mean height of 15- year old boys us listed as 66.9 inches, with a standard deviation of 2.1 inches, according to the U.S. Association of pediatric medicine. Height of 15- year old boys tend to follow a normal distribution. Suppose a 15 year old boy was selected at random A) what is the probability the teenager selected would be taller than 66 inches? B) what is the possibility the teenager selected would have a height of between 68 and 72 inches