The mean birth length for children born in a certain country at full term?(after 40?weeks) is 52.5 cm?(about 20.7 ?inches). Suppose the standard deviation is 2.7 cm and the shape of the distribution is symmetric and unimodal.

a. What is the range of birth lengths (in centimeters) of children born in this country from one standard deviation below the mean to one standard deviation above the mean? The top value is D centimeters. The bottom value is D centimeters. (Type integers or decimals. Do not round.)