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Standard deviation of 22 77 59 48 3?

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Anonymous

∙ 16y ago
Updated: 8/17/2019

Number of cases 5

To find the mean, add all of the observations and divide by 5

Mean 41.8

Squared deviations

(22-41.8)^2 = (-19.8)^2 = 392.04

(77-41.8)^2 = (35.2)^2 = 1239.04

(59-41.8)^2 = (17.2)^2 = 295.84

(48-41.8)^2 = (6.2)^2 = 38.44

(3-41.8)^2 = (-38.8)^2 = 1505.44

Add the squared deviations and divide by 5

Variance = 3470.8/5

Variance 694.16

Standard deviation = sqrt(variance) = 26.3469

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∙ 16y ago
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