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Which year appears to have more variability in number of convictions as measured by the standard deviation? Are the results consistent with what you found using the range?

Nuwmber of Public Corrugticn Convictions by Ye 1990 2009 Got Level No of Coevictions Govt Level No of Coevictions l426 Federa State Local Federal 583 102 State 79 257 225
math   Statistics-And-Probability   
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Solution: The data given in the question statement is as follows. Computing additional columns to determine the standard deviation: (y2-y2) 2 255361.78 687793.78 454725.44 1990 2009 583 79 225 2 y1 2877 426 102 257 (Vi-y12 141376 774400 538756 Federal State Local j ). 1454532 | ( V1397881 2 y2 2794 y Range -Maximum - Minimum Range for 1990 583 - 79- 504 Range for 2009 426 - 102 - 324 3,287799 2 y1 y1 2794 931.33 959 |1454532 3-1 Σ(V1 _yD2 2i- 1 Σ(y2-y2)2 |1397881 - 836.03 n2The standard deviation is higher for 1999. Hence, the year 1990 appears to have more variability. The results are consistent with what is determined using Range. Range is higher for 1990.

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