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anonymous

  • 5 years ago

The mean of this data set is 6. What is the standard deviation of the data set? 2, 4, 6, 9, 9

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  1. anonymous
    • 5 years ago
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    a. radical 9.5 b. radical 7.6 c. radical 3 d. radical 38

  2. amistre64
    • 5 years ago
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    take each entry and subtract the mean from it, and square your results add those results together and divide by how many there are. this number is then the variance and sd = sqrt(variance)

  3. amistre64
    • 5 years ago
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    (2-6)^2 (4-6)^2 (6-6)^2 (9-6)^2 + (9-6)^2 --------- some number divide that by 5 and you should get the value in your radical

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