Matemática discreta Ejemplos

$54556$ , $1545$ , $35385$ , $46055$ , $10555$ , $9614$ , $59425$ , $69898$ , $12407$ , $32020$ , $24230$ , $42143$

Paso 1

La media de un conjunto de números es la suma dividida por la cantidad de términos.

$\overline{x} = \frac{54556 + 1545 + 35385 + 46055 + 10555 + 9614 + 59425 + 69898 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2

Simplifica el numerador.

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Paso 2.1

Suma $54556$ y $1545$ .

$\overline{x} = \frac{56101 + 35385 + 46055 + 10555 + 9614 + 59425 + 69898 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2.2

Suma $56101$ y $35385$ .

$\overline{x} = \frac{91486 + 46055 + 10555 + 9614 + 59425 + 69898 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2.3

Suma $91486$ y $46055$ .

$\overline{x} = \frac{137541 + 10555 + 9614 + 59425 + 69898 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2.4

Suma $137541$ y $10555$ .

$\overline{x} = \frac{148096 + 9614 + 59425 + 69898 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2.5

Suma $148096$ y $9614$ .

$\overline{x} = \frac{157710 + 59425 + 69898 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2.6

Suma $157710$ y $59425$ .

$\overline{x} = \frac{217135 + 69898 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2.7

Suma $217135$ y $69898$ .

$\overline{x} = \frac{287033 + 12407 + 32020 + 24230 + 42143}{12}$

Paso 2.8

Suma $287033$ y $12407$ .

$\overline{x} = \frac{299440 + 32020 + 24230 + 42143}{12}$

Paso 2.9

Suma $299440$ y $32020$ .

$\overline{x} = \frac{331460 + 24230 + 42143}{12}$

Paso 2.10

Suma $331460$ y $24230$ .

$\overline{x} = \frac{355690 + 42143}{12}$

Paso 2.11

Suma $355690$ y $42143$ .

$\overline{x} = \frac{397833}{12}$

Paso 3

Cancela el factor común de $397833$ y $12$ .

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Paso 3.1

Factoriza $3$ de $397833$ .

$\overline{x} = \frac{3 (132611)}{12}$

Paso 3.2

Cancela los factores comunes.

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Paso 3.2.1

Factoriza $3$ de $12$ .

$\overline{x} = \frac{3 \cdot 132611}{3 \cdot 4}$

Paso 3.2.2

Cancela el factor común.

$\overline{x} = \frac{3 \cdot 132611}{3 \cdot 4}$

Paso 3.2.3

Reescribe la expresión.

$\overline{x} = \frac{132611}{4}$

Paso 4

Divide.

$\overline{x} = 33152.75$

Paso 5

La media debería redondearse a una cifra decimal más que los datos originales. Si los datos originales fueran mixtos, redondea a una cifra decimal más que el dato menos preciso.

$\overline{x} = 33152.8$

Paso 6

Establece la fórmula para la varianza. La varianza de un conjunto de valores es una medida de la propagación de sus valores.

$s^{2} = \sum_{i = 1}^{n} \frac{{(x_{i} - x_{a v g})}^{2}}{n - 1}$

Paso 7

Establece la fórmula para la varianza de este conjunto de números.

$s = \frac{{(54556 - 33152.8)}^{2} + {(1545 - 33152.8)}^{2} + {(35385 - 33152.8)}^{2} + {(46055 - 33152.8)}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8

Simplifica el resultado.

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Paso 8.1

Simplifica el numerador.

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Paso 8.1.1

Resta $33152.8$ de $54556$ .

$s = \frac{{21403.2}^{2} + {(1545 - 33152.8)}^{2} + {(35385 - 33152.8)}^{2} + {(46055 - 33152.8)}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.2

Eleva $21403.2$ a la potencia de $2$ .

$s = \frac{458096970.24 + {(1545 - 33152.8)}^{2} + {(35385 - 33152.8)}^{2} + {(46055 - 33152.8)}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.3

Resta $33152.8$ de $1545$ .

$s = \frac{458096970.24 + {(- 31607.8)}^{2} + {(35385 - 33152.8)}^{2} + {(46055 - 33152.8)}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.4

Eleva $- 31607.8$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + {(35385 - 33152.8)}^{2} + {(46055 - 33152.8)}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.5

Resta $33152.8$ de $35385$ .

$s = \frac{458096970.24 + 999053020.84 + {2232.2}^{2} + {(46055 - 33152.8)}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.6

Eleva $2232.2$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + {(46055 - 33152.8)}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.7

Resta $33152.8$ de $46055$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + {12902.2}^{2} + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.8

Eleva $12902.2$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + {(10555 - 33152.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.9

Resta $33152.8$ de $10555$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + {(- 22597.8)}^{2} + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.10

Eleva $- 22597.8$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + {(9614 - 33152.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.11

Resta $33152.8$ de $9614$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + {(- 23538.8)}^{2} + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.12

Eleva $- 23538.8$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + {(59425 - 33152.8)}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.13

Resta $33152.8$ de $59425$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + {26272.2}^{2} + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.14

Eleva $26272.2$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + {(69898 - 33152.8)}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.15

Resta $33152.8$ de $69898$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + {36745.2}^{2} + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.16

Eleva $36745.2$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + {(12407 - 33152.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.17

Resta $33152.8$ de $12407$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + {(- 20745.8)}^{2} + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.18

Eleva $- 20745.8$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + {(32020 - 33152.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.19

Resta $33152.8$ de $32020$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + {(- 1132.8)}^{2} + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.20

Eleva $- 1132.8$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + {(24230 - 33152.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.21

Resta $33152.8$ de $24230$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + {(- 8922.8)}^{2} + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.22

Eleva $- 8922.8$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + {(42143 - 33152.8)}^{2}}{12 - 1}$

Paso 8.1.23

Resta $33152.8$ de $42143$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + {8990.2}^{2}}{12 - 1}$

Paso 8.1.24

Eleva $8990.2$ a la potencia de $2$ .

$s = \frac{458096970.24 + 999053020.84 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.25

Suma $458096970.24$ y $999053020.84$ .

$s = \frac{1457149991.08 + 4982716.84 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.26

Suma $1457149991.08$ y $4982716.84$ .

$s = \frac{1462132707.92 + 166466764.84 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.27

Suma $1462132707.92$ y $166466764.84$ .

$s = \frac{1628599472.76 + 510660564.84 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.28

Suma $1628599472.76$ y $510660564.84$ .

$s = \frac{2139260037.6 + 554075105.44 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.29

Suma $2139260037.6$ y $554075105.44$ .

$s = \frac{2693335143.04 + 690228492.84 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.30

Suma $2693335143.04$ y $690228492.84$ .

$s = \frac{3383563635.88 + 1350209723.04 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.31

Suma $3383563635.88$ y $1350209723.04$ .

$s = \frac{4733773358.92 + 430388217.64 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.32

Suma $4733773358.92$ y $430388217.64$ .

$s = \frac{5164161576.56 + 1283235.84 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.33

Suma $5164161576.56$ y $1283235.84$ .

$s = \frac{5165444812.4 + 79616359.84 + 80823696.04}{12 - 1}$

Paso 8.1.34

Suma $5165444812.4$ y $79616359.84$ .

$s = \frac{5245061172.24 + 80823696.04}{12 - 1}$

Paso 8.1.35

Suma $5245061172.24$ y $80823696.04$ .

$s = \frac{5325884868.28}{12 - 1}$

Paso 8.2

Simplifica la expresión.

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Paso 8.2.1

Resta $1$ de $12$ .

$s = \frac{5325884868.28}{11}$

Paso 8.2.2

Divide $5325884868.28$ por $11$ .

$s = 484171351.66\overline{18}$

Paso 9

Aproxima el resultado.

$s^{2} \approx 484171351.6618$