Ross is recording the size on fossils from the legs of
dinosaurs. A particular leg bone follows a roughly
symmetric distribution with a mean length of 5 feet and
standard deviation of 4 inches. Find and interpret the
z-score for a bone that is 55 inches. Round your
answer to 2 decimal places. BE CAREFUL WITH
UNITS !

What is the standard deviations ?
What is the Z-Score ?