Estadistica
16 | 33 | 528 |
17 | 36 | 612 |
18 | 13 | 234 |
19 | 11 | 209 |
20 | 7 | 140 |
TOTAL | 100 |* =1,723 |
* MEDIA ARITMETICA
* Xi 1,723 Xi Fi
X=--------=------ -= 17.23X=----------- = 17.23
N 100 N
* MEDIANA16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,1717,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20.
34
17+17=-----= 17
2
EDADES Xi | FRECUENCIAFi |
16 | 33 |
17 | 36 |
18 | 13 |
19 | 11 |
20 | 7 |
| * =100 |
* MODA
*MEDIDAS DE POSICION NO CENTRAL16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20.
16+1617+17
Q1:------- = 16 Q2: -------- = 17
2 218+18
Q3: -------- = 18
2
* COEFICIENTE DE VARIACION
EDADESXi | FRECUENCIAFi | ( Xi-X )2 Fi |
16 | 33 | 49.9257 |
17 | 36 | 1.9044 |
18 | 13 | 7.7077 |
19 | 11| 34.4619 |
20 | 7 | 53.7103 |
| * =100 | * = 147.71 |
S2= (Xi-X)2 Fi 147.71 S2 = 1.4771
--------------- = ----------...
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