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STANDARD DEVIATION Calculate the sample variance of the dataset, by hand, using both methods discussed in class. Student Score L Michelle 2. Ryanne J Bilal Pam 5. Jennifer 6. Dave 7. Joel 8 Sam 9 Justine 10. Juan 62 84 94 Method 1: n-1 Deviation Squared Deviation Score Sample Mean Total:

Method 2: 2 (2x m-1 Score a7 Total:

math   Statistics-And-Probability   
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Solution: Method 1: Score Sample Mean Deviation Squared Deviation 82 79 79 79 79 79 79 79 79 79 79 3 90 71 62 68 74 84 94 4 121 64 289 121 25 25 225 81 (Xi-X) 2-964 15 2. χί 790 | 964 10-1 10.349 Σ(xi- 2Method 2: Score x2 6724 5929 8100 5041 3844 4624 5476 7056 8836 7744 82 90 71 62 68 74 84 94 Σχί : 790 27 = 63374 2-Q Xi). |63374-T0 = 10.349 Vn-1 10 1

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