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Naya [18.7K]
2 years ago
6

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

Mathematics
1 answer:
jek_recluse [69]2 years ago
4 0

Answer:

4.19

Step-by-step explanation:

Find the mean:

\text{Mean}=\frac{12+19+9}{3}=\frac{40}{3}

Find the standard deviation:

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

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