Question

Considere la siguiente muestra de cinco valores y las ponderaciones correspondientes: $$ \begin{array}{cc} x_i & w_i \\ 4,6 & 8 \\ 3,2 & 3 \\ 5,4 & 6 \\ 2,6 & 2 \\ 5,2 & 5 \end{array} $$ a) Calcule la media aritmética de los $x_i$ valores sin ponderaciones. b) Calcule la media ponderada de los $x_i$ valores,

Name: Problem 26, Chapter 3: Estadistica para administracion y economia
Uploaded: 2022-02-13T20:33:47-08:00
Duration: 2 min 21 s
Channel: Sheryl Ezze
Description: Considere la siguiente muestra de cinco valores y las ponderaciones correspondientes: xi wi 4,6 8 3,2 3 5,4 6 2,6 2 5,2 5 a) Calcule la media aritmética de los xi valores sin ponderaciones. b) Calcule la media ponderada de los xi valores,

   Considere la siguiente muestra de cinco valores y las ponderaciones correspondientes:
$$
\begin{array}{cc}
x_i & w_i \\
4,6 & 8 \\
3,2 & 3 \\
5,4 & 6 \\
2,6 & 2 \\
5,2 & 5
\end{array}
$$
a) Calcule la media aritmética de los $x_i$ valores sin ponderaciones.
b) Calcule la media ponderada de los $x_i$ valores,

Estadistica para administracion y economia

Paul Newbold 6th Edition

Chapter 3, Problem 26

Instant Answer

Solved by Expert Sheryl Ezze

02/13/2022

Step 1

Sum of $x_i$ values = $4.6 + 3.2 + 5.4 + 2.6 + 5.2 = 21$ Show more…

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Considere la siguiente muestra de cinco valores y las ponderaciones correspondientes: $$ \begin{array}{cc} x_i & w_i \\ 4,6 & 8 \\ 3,2 & 3 \\ 5,4 & 6 \\ 2,6 & 2 \\ 5,2 & 5 \end{array} $$ a) Calcule la media aritmética de los $x_i$ valores sin ponderaciones. b) Calcule la media ponderada de los $x_i$ valores,

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Key Concepts

Weighted Mean

The weighted mean is calculated by multiplying each value by a predetermined weight, summing these products, and then dividing by the sum of the weights. This measure of central tendency takes into account the relative importance or frequency of each value, providing a more accurate average when the data has varying levels of significance.

Arithmetic Mean

The arithmetic mean is the sum of all values divided by the number of values. This concept provides a measure of central tendency by assigning equal weight to every observation, regardless of any external factors or weights associated with the values.

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