Pizza prices, part 2. The weekly prices of one brand of frozen pizza over a three-year period in Chicago are provided in the data file. Use the price data to answer the following questions.
a) Find the five-number summary for these data.
b) Find the range and IQR for these data.
1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 Year