Find the standard deviation of the data, 12, 19, 9.

Harel asked Mar 24, 2023

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Harel asked Mar 24, 2023

by Harel

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11 votes

Answer:

4.19

Explanation:

Find the mean:

$\text{Mean}=(12+19+9)/(3)=(40)/(3)$

Find the standard deviation:

$\text{Standard Deviation}=\sqrt{((12-(40)/(3))^2+(19-(40)/(3))^2+(9-(40)/(3))^2)/(3)}=\sqrt{(158)/(9)}\approx4.19$

Joe Pallas answered Mar 30, 2023

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