In order to familiarize yourself with the measures of variation, compute the range, standard deviation, and variance

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In order to familiarize yourself with the measures of variation, compute the range, standard deviation, and variance for each set of scores.
a. .6, .5, .8, .6, .2, .3, .9, .9, .7
b. 9.62, 9.31, 9.15, 10.11, 9.84, 10.78, 9.08, 10.17, 11.23, 12.45
c. 1001, 1253, 1234, 1171, 1125, 1099, 1040, 999, 1090, 1066, 1201, 1356
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