Question

O Desvio Médio (dm) do rol de dados: 1; 3; 5; 5; 6, corresponde a:

1,8
2,2
1,6
2,0
1,4​

Answer 1

Resposta:

$\Large \boxed{ dm = \dfrac{\sum_{ | \overline{x} - xi| }^{ }}{n}} \\ \\ \Large \boxed{ \overline{x} = \frac{ \: \sum_{xi}^{} }{n} } \\ \\ \overline{x} = \frac{1 + 3 + 5 + 5 + 6}{5} \\ \\ \overline{x} = \frac{20}{5} \\ \\ \Large\boxed{\overline{x} = 4 } \\ \\ dm = \frac{ | 4 - 1 | + |4 - 3 |+ |4 - 5 | + + |4 - 5 | + |4 - 6 |}{5} \\ \\ dm = \frac{ | + 3 |+ | + 1|+ | - 1 | + | - 1 | + | - 2 |}{5} \\ \\ dm = \frac{3 + 1 + 1+ 1 + 2}{5} \\ \\ dm = \frac{8}{5} \\ \\ \Large \: \boxed{\green{ \bf \: dm = 1,6}} \\ \\ \Large \boxed{ \underline{ \blue{ \bf \: Bons \: Estudos!}}} \\ \\ \Large \boxed{ \underline{ \bf \: 24/05/2021}}$