EspynT253935 EspynT253935
  • 26-10-2022
  • Mathematics
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I don’t understand how to do this question please help me to understand

I dont understand how to do this question please help me to understand class=

Respuesta :

FalonH262919 FalonH262919
  • 26-10-2022

Explanation

The standart deviation is a measure that show us how dispersed the data is in relation to the mean.

Lets firts find the mean of this data set:

[tex]Mean=\frac{27+19+26+31+12}{5}=\frac{115}{5}=23[/tex]

And for the standart deviation:

[tex]\begin{gathered} S=\sqrt{\frac{(27-23)^2+(19-23)^2+(26-23)^2+(31-23)^2+(12-23)^2\text{ }}{5}} \\ S=\sqrt{\frac{226}{5}} \\ S\approx6.72 \end{gathered}[/tex]

Answer

6.72

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