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xi peso en libra           Ni                ni                   pi               N
                      3                1                   0.02             2%                   1
                      4                4                   0.08             8%                   5
                      5                5                    0.1            10%                  10
                      6                9                   0.18            18%                  19
                      7               12                   0.24            24%                  31 medida d tendencia central
                      8                9                   0.18            18%                  40
                      9                5                    0.1            10%                  45
                     10                4                   0.08             8%                  49
                     11                1                   0.02             2%                  50
                                    n=50                      1           100%


x=350/50= 7




                                                                                                              3   1



                                                                                                          1       2




         0.11                    0.11             0.126                0.112            0.117         0.113
        0.113                   0.098             0.122                0.105            0.103         0.119
        0.124                   0.118             0.132                0.108            0.115          0.12
        0.117                   0.111             0.112                0.101            0.112         0.111
        0.108                    0.12             0.099                0.102            0.129         0.115
        0.118                   0.106             0.128                0.094           0.1114

                   0.135
                   0.094
                   0.041

                            0.005857143                   0.006



Intervalo                               xi                  Ni           xi * Ni                Ni
(Est. Audi)
0,094 - 0,101                0.1                      6           6.1              6
       0,101-0,108                 0.1                      7           7.1             13
       0,108-0,115                0.11                     14         14.11             27
      0,115 - 0,122               0.12                     12         12.12             39
      0,122 - 0,129               0.13                      6          6.13             45
      0,129 - 0,135               0.13                      5          5.13             50
                                                       n = 50




me = 0,101 + 13 - 6           x 7
                              7

  me = 0,101 +                7                x 7
                              7

  me = 0,101 +        7 = 7,101 = 7



                      Nºde palabras                              Normales
                                    Disléxicos n D
                         leídas                                    nN

                       25 o menos               56                    1
                           26                   24                    9
                           27                   16                   21
                           28                   12                   29
                           29                   10                   28

                           30 o más             2                    32

     DISL                                NORM
  X= 120/6=20                            X =120/6=20

    dislexicos
  nº de palab xi      Ni                 ni                     pi            xi*Ni
        25                         56                   0.46           46%            1400
        26                         24                     0.2          20%             624
        27                         16                   0.13           14%             432
        28                         12                     0.1          10%             336
        29                         10                  0.083            8%             290
        30                          2                  0.017            2%              60
       total                      120                                 100%            3142

 x=3142/120=26,1

    mediana =         16+12/2=14
medida d tendencia central




                                       Chart Title
                                       xi peso en libra       Ni


                                               12
                                       9
                                                          9
                   4           5
             14            5       6       7        8              9       10   11
                                                                       5
                                                                            4
                                                                                1
              2        3           4       5        6              7
                                                                           8
                                                                                9




                   0.135                   0.107              0.122
                    0.1                    0.117              0.113
                   0.107                   0.123              0.109
                   0.119                   0.103               0.1
                   0.121                    0.13              0.134
normales
  nº de palab xi      Ni        ni            pi            xi*Ni
        25             1             0.0083            1%             25
        26             9              0.075            8%            234
        27            21              0.175           18%            567
        28            29             0.2417        24.17%            812
        29            28              0.233        23.30%            812
        30            32              0.267        26.70%            960
total                 120                           100%            3410

x=3410/120=28,4

mediana =          21+29/2=25
Libro1.xlsx ejercios excel

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Libro1.xlsx ejercios excel

  • 1. xi peso en libra Ni ni pi N 3 1 0.02 2% 1 4 4 0.08 8% 5 5 5 0.1 10% 10 6 9 0.18 18% 19 7 12 0.24 24% 31 medida d tendencia central 8 9 0.18 18% 40 9 5 0.1 10% 45 10 4 0.08 8% 49 11 1 0.02 2% 50 n=50 1 100% x=350/50= 7 3 1 1 2 0.11 0.11 0.126 0.112 0.117 0.113 0.113 0.098 0.122 0.105 0.103 0.119 0.124 0.118 0.132 0.108 0.115 0.12 0.117 0.111 0.112 0.101 0.112 0.111 0.108 0.12 0.099 0.102 0.129 0.115 0.118 0.106 0.128 0.094 0.1114 0.135 0.094 0.041 0.005857143 0.006 Intervalo xi Ni xi * Ni Ni (Est. Audi)
  • 2. 0,094 - 0,101 0.1 6 6.1 6 0,101-0,108 0.1 7 7.1 13 0,108-0,115 0.11 14 14.11 27 0,115 - 0,122 0.12 12 12.12 39 0,122 - 0,129 0.13 6 6.13 45 0,129 - 0,135 0.13 5 5.13 50 n = 50 me = 0,101 + 13 - 6 x 7 7 me = 0,101 + 7 x 7 7 me = 0,101 + 7 = 7,101 = 7 Nºde palabras Normales Disléxicos n D leídas nN 25 o menos 56 1 26 24 9 27 16 21 28 12 29 29 10 28 30 o más 2 32 DISL NORM X= 120/6=20 X =120/6=20 dislexicos nº de palab xi Ni ni pi xi*Ni 25 56 0.46 46% 1400 26 24 0.2 20% 624 27 16 0.13 14% 432 28 12 0.1 10% 336 29 10 0.083 8% 290 30 2 0.017 2% 60 total 120 100% 3142 x=3142/120=26,1 mediana = 16+12/2=14
  • 3. medida d tendencia central Chart Title xi peso en libra Ni 12 9 9 4 5 14 5 6 7 8 9 10 11 5 4 1 2 3 4 5 6 7 8 9 0.135 0.107 0.122 0.1 0.117 0.113 0.107 0.123 0.109 0.119 0.103 0.1 0.121 0.13 0.134
  • 4. normales nº de palab xi Ni ni pi xi*Ni 25 1 0.0083 1% 25 26 9 0.075 8% 234 27 21 0.175 18% 567 28 29 0.2417 24.17% 812 29 28 0.233 23.30% 812 30 32 0.267 26.70% 960 total 120 100% 3410 x=3410/120=28,4 mediana = 21+29/2=25