Heights of ten year old boys (5th graders) follow an approximate normal distribution with mean
=55.5 inches and standard deviation =2.7 inches. 11 Centers for Disease Control and Prevention
growth chart at http://www.cdc.gov/growthcharts/html_charts/statage.htm. (a) According to this
normal distribution, what proportion of 10 -year-old boys are between 4ft3.5 in and 5ft0.5in tall
(between 51.5 inches and 60.5 inches)? Round your answer to three decimal places. Proportion =
eTextbook and Media (b) A parent says his 10-year-old son is in the 99th percentile in height.
How tall is this boy? Round your answer to two decimal places. Height = inches