The winner’s shares ($ × 103, not corrected for inflation) of the purse for the Kentucky Derby from 1920 to 1999, by decade, are as follows:

Compute the mean, standard deviation, and COV for each decade. Create bar charts for the means, standard deviations, and COVs as a function of decades.

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1920 to 1929 30 38 47 54 53 53 50 51 55 54 1930 to 1939 51 49 52 49 28 39 38 52 47 46 1940 to 1949 60 61 64 61 65 65 96 92 83 92 1950 to 1959 93 98 96 90 102 108 123 108. 116 120 1960 to 1969 115 121 120 109 114 112 121 120 123 113 1970 to 1979 128 145 140 155 274 210 165 215 187 229 1980 to 1989 251 317 418 426 537 407 609 619 611 574 1990 to 1999 581 656 725 736 629 707 870 700 739 775