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Estrutura Etária da
    População




    Construção de
Pirâmides Etárias
Estrutura Etária da População
         É a composição de uma população por sexos, idades e
         grupos etários.


Pirâmide Etária
 Gráfico de barras que representa a estrutura etária de uma
 população, distribuição em função do sexo e da idade.



                                               •Jovens: 0 – 14 anos
 • Masculino         3 Grupos Etários          •Adultos: 15 – 64 anos
 • Feminino                                    •Idosos: 65 anos e mais
Construção de uma Pirâmide Etária
   1º Passo                             Idades    Homens %   Mulheres %
                                          0-4         8,9        8,9
       Organizar os dados da             5-9         7,3        7,3
        população, dividida por sexo e   10 – 14      6,2        6,1
        por classes etárias. É mais      15 – 19      5,3        5,3
        fácil utilizar dados em          20 – 24      4,3        4,3
        percentagem porque permite       25 – 29      3,6        3,5
        uma melhor comparação.           30 – 34      3,0        2,9
                                         35 – 39      2,7        2,4
                  • O Exemplo da         40 – 44      2,1        1,9

                    Nigéria              45 – 49      1,9        1,8
                                         50 – 54      1,6        1,5
                                         55 – 59      1,3        1,2
                                         60 – 64      0,9        0,8
                                         65 – 69      0,7        0,7
                                         70 – 74      0,5        0,5
                                         75 – 79      0,2        0,2
                                          ≥ 80        0,1        0,1
   2º Passo:
      Traçar dois eixos verticais paralelos separados por

       1,5 cm.

    – Cada 0,5 cm desse eixo vertical corresponde a uma
    classe etária.




                           5-9

                           0-4    0,5 cm



                         1,5 cm
   3º Passo
      Traçar dois eixos horizontais a partir da base dos

       verticais – um para os homens (esquerda) e outro
       para as mulheres (direita).




                          10-14

                           5-9

                           0-4
   4º Passo
      Marcar no eixo horizontal o valor em percentagem de

       cada sexo (utiliza-se a escala de 1 cm = 1%).




                           10-14

                           5-9

                           0-4

      %          2    1                   1   2   %

                                   1 cm
   5º Passo
          Representar os valores em barras horizontais para cada

           classe etária.
                                        ≥ 80
                                        75-79
                                        70-74
                                        65-69
                                        60-64
                                        55-59
                                        50-54
                                        45-49
                                        40-44
                                        35-39
                                        30-34
                                        25-29
                                        20-24
                                        15-19
                                        10-14
                                         5-9

                                         0-4
%   9   8   7   6   5   4   3   2   1           1   2   3   4   5   6   7   8   9 %

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Construção pirâmide etária para os alunos

  • 1. Estrutura Etária da População Construção de Pirâmides Etárias
  • 2. Estrutura Etária da População É a composição de uma população por sexos, idades e grupos etários. Pirâmide Etária Gráfico de barras que representa a estrutura etária de uma população, distribuição em função do sexo e da idade. •Jovens: 0 – 14 anos • Masculino 3 Grupos Etários •Adultos: 15 – 64 anos • Feminino •Idosos: 65 anos e mais
  • 3. Construção de uma Pirâmide Etária  1º Passo Idades Homens % Mulheres % 0-4 8,9 8,9  Organizar os dados da 5-9 7,3 7,3 população, dividida por sexo e 10 – 14 6,2 6,1 por classes etárias. É mais 15 – 19 5,3 5,3 fácil utilizar dados em 20 – 24 4,3 4,3 percentagem porque permite 25 – 29 3,6 3,5 uma melhor comparação. 30 – 34 3,0 2,9 35 – 39 2,7 2,4 • O Exemplo da 40 – 44 2,1 1,9 Nigéria 45 – 49 1,9 1,8 50 – 54 1,6 1,5 55 – 59 1,3 1,2 60 – 64 0,9 0,8 65 – 69 0,7 0,7 70 – 74 0,5 0,5 75 – 79 0,2 0,2 ≥ 80 0,1 0,1
  • 4. 2º Passo:  Traçar dois eixos verticais paralelos separados por 1,5 cm. – Cada 0,5 cm desse eixo vertical corresponde a uma classe etária. 5-9 0-4 0,5 cm 1,5 cm
  • 5. 3º Passo  Traçar dois eixos horizontais a partir da base dos verticais – um para os homens (esquerda) e outro para as mulheres (direita). 10-14 5-9 0-4
  • 6. 4º Passo  Marcar no eixo horizontal o valor em percentagem de cada sexo (utiliza-se a escala de 1 cm = 1%). 10-14 5-9 0-4 % 2 1 1 2 % 1 cm
  • 7. 5º Passo  Representar os valores em barras horizontais para cada classe etária. ≥ 80 75-79 70-74 65-69 60-64 55-59 50-54 45-49 40-44 35-39 30-34 25-29 20-24 15-19 10-14 5-9 0-4 % 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 %