Better Roads magazine reported the percentage of interstate and state owned
Better Roads magazine reported the percentage of interstate and state owned
Better Roads magazine reported the percentage of interstate and state-owned bridges that were structurally deficient or functionally obsolete (%SD/FO) for each U.S. state in 2003. (Percentages are expressed in decimal form [e.g., 0.20 _ 20%].)
a. Construct a histogram.
b. Does the variable “%SD/FO” appear to have an approximately normal distribution?
c. Calculate the mean.
d. Find the median.
e. Find the range.
f. Find the standard deviation.