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.
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