The values that exist two standard deviations above and below the mean are 681 and 265.
The given parameters exist:
Mean = 473
Standard deviation =104
The values above and below the mean exist calculated utilizing:
[tex]$x=\bar{x} \pm n \sigma$[/tex]
In this case n = 2.
So, we have, [tex]$x=\bar{x} \pm 2 \sigma$[/tex]
The value above is:
x = 473 + 2 [tex]*[/tex] 104 = 681
The value below is:
x = 473 - 2 [tex]*[/tex] 104 = 265
Therefore, the values that exist two standard deviations above and below the mean are 681 and 265.
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