The relationship between the length of an adult's femur (thigh bone) and the height of the adult can be
approximated by the linear equations
y = 0.514x − 14.75 Female
y = 0.532x − 17.03 Male
where y is the length of the femur in inches and x is the height of the adult in inches.
A crime scene investigator discovers a femur belonging to an adult human female. The bone is 20 inches long. Estimate the height of the female. (Round your answer to one decimal place.)