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Pertanyaan

Tentukan mean, modus, dan median dari setiap data berikut :

39 space cm comma space 37 space cm comma space 36 space cm comma space 45 space cm comma space 40 space cm comma space 38 space cm comma 44 space cm comma space 38 space cm comma space 34 space cm comma space 39 space cm comma space 38 space cm comma space 39 space cm  

N. Indah

Master Teacher

Mahasiswa/Alumni Universitas Diponegoro

Jawaban terverifikasi

Jawaban

dari data tersebut diperoleh nilai text modus end text equals 38 space text dan end text space 39text median end text equals 38 comma 5, dan text mean end text equals 38 11 over 12

Pembahasan

Data :

 39 space cm comma space 37 space cm comma space 36 space cm comma space 45 space cm comma space 40 space cm comma space 38 space cm comma 44 space cm comma space 38 space cm comma space 34 space cm comma space 39 space cm comma space 38 space cm comma space 39 space cm 

Data setelah diurutkan : 

34 space cm comma space 36 space cm comma space 37 space cm comma space 38 space cm comma space 38 space cm comma space 38 space cm comma 39 space cm comma space 39 space cm comma space 39 space cm comma space 40 space cm comma space 44 space cm comma space 45 space cm  

Maka diperoleh:

1. Modus : begin mathsize 14px style 38 space cm space dan space 39 space cm end style, karena ada tiga kali

2. Median : 

table attributes columnalign right center left columnspacing 0px end attributes row cell text Median end text end cell equals cell fraction numerator data space ke minus 6 plus data space ke minus 7 over denominator 2 end fraction end cell row blank equals cell fraction numerator 38 space cm plus space 39 space text cm end text over denominator 2 end fraction end cell row blank equals cell 38 comma 5 space cm end cell end table  

3. Mean :

table attributes columnalign right center left columnspacing 0px end attributes row cell top enclose x end cell equals cell fraction numerator sum from blank to blank of x over denominator n end fraction end cell row cell top enclose x end cell equals cell 467 over 12 end cell row cell top enclose x end cell equals cell 38 11 over 12 space cm end cell end table   , 

Dengan demikian, dari data tersebut diperoleh nilai text modus end text equals 38 space text dan end text space 39text median end text equals 38 comma 5, dan text mean end text equals 38 11 over 12

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Perhatikan tabel berikut! Berdasarkan tabel diatas, tentukan: a. Mean (rata-rata) b. Median c. Modus

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