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Pertanyaan

Simpangan rata-rata dari data 5,7,7,12,11, 6 adalah .........

  1. 2,33

  2. 3,23

  3. 3,32

  4. 5,23

  5. 5,32

A. Acfreelance

Master Teacher

Jawaban terverifikasi

Pembahasan

Rata-rata :

X with bar on top equals fraction numerator j u m l a h space d a t a over denominator b a n y a k space d a t a end fraction  X with bar on top equals fraction numerator 5 plus 7 plus 7 plus 12 plus 11 plus 6 over denominator 6 end fraction equals 48 over 6 equals 8

Simpangan rata-rata :

S R equals begin inline style sum from i equals 1 to n of open vertical bar x subscript i minus X with bar on top close vertical bar end style  S R equals fraction numerator vertical line 5 minus 8 vertical line plus open vertical bar 7 minus 8 close vertical bar plus open vertical bar 7 minus 8 close vertical bar plus open vertical bar 12 minus 8 close vertical bar plus open vertical bar 11 minus 8 close vertical bar plus open vertical bar 6 minus 8 close vertical bar over denominator 6 end fraction equals 14 over 6 equals 2 comma 33

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Diketahui data: 8,7,4,5,9,3,7,6,6,5  Tentukan: b. simpangan rata-rata.

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