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10 July, 11:11

If Professor Wilson found that the test scores of his students had a variance of 4.4, what is the standard deviation? Type a numerical answer in the space provided. Round your answer to the nearest tenth and do not type spaces in your answer.

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  1. 10 July, 12:15
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    The standard deviation is the square root of a data set's variance.

    Since our variance here is 4.4, our standard deviation is √4.4 ≈ 2.1
  2. 10 July, 14:00
    0
    it is 2.1
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