Matematika

Pertanyaan

diketahui data : 21, 20, 19, 18, 17, 22, 22, 18, 17, 23, 24, 25 tentukan median, modus, jangkauan interkuartil ,simpangan kuartil

1 Jawaban

  • jawab

    data 
    17, 17, 18, 18, 19, 20, 21, 22, 22, 23, 24,  25
    ...............q1..............q2..............q3

    q1= 1/2 (18+18) = 18
    q2 = 1/2 (20+21) = 20,5 = median
    q3 = 1/2 (22 + 23)= 22,5

    JIK = q3-q1 = 22.5 - 18 = 4,5
    SIK = 1/2 (q3-q1) = 2,25

    Mo= 17, 18, 22

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