How do the average credit scores of people living in ­various American cities differ? The file Credit Scores is an ordered ­array of the average credit scores of people living in 143 American ­cities. (Data extracted from usat.ly/17a1fA6)
a. Compute the mean, median, first quartile, and third quartile.
b. Compute the range, interquartile range, variance, standard ­deviation, and coefficient of variation.
c. Construct a boxplot. Are the data skewed? If so, how?
d. Based on the results of (a) through (c), what conclusions might you reach concerning the average credit scores of people living in various American cities?