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edilmabio
@edilmabio
April 2022
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Considere o conjunto de valores: 3, 5, 7, 4, 8. Determine o desvio padrão destes valores
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Primeiro devemos calcular a média:
M =
3 + 5 + 7 + 4 + 8
=
27
5 5
M = 5,4
___________________________________________
Dp= /
(3 - 5,4)² + (5 - 5,4)²+( 7 - 5,4)²+ (4 - 5,4) + (8 - 5,4)²
√ 5 - 1
______________________________________
Dp = √ [ ( -2,4)² + (-0,4)² + (1,6)² + (-1,4)² + (2,6)² ] / 4
_______________________________
Dp = √ (5,76 + 0,16 + 2,56 + 1,96 + 6,76 ) / 4
__________
Dp = √ 17,2 / 4
Dp = 2,073644
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Verified answer
Primeiro devemos calcular a média:M = 3 + 5 + 7 + 4 + 8 = 27
5 5
M = 5,4
___________________________________________
Dp= / (3 - 5,4)² + (5 - 5,4)²+( 7 - 5,4)²+ (4 - 5,4) + (8 - 5,4)²
√ 5 - 1
______________________________________
Dp = √ [ ( -2,4)² + (-0,4)² + (1,6)² + (-1,4)² + (2,6)² ] / 4
_______________________________
Dp = √ (5,76 + 0,16 + 2,56 + 1,96 + 6,76 ) / 4
__________
Dp = √ 17,2 / 4
Dp = 2,073644