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SImpangan rata-rata dari data 6, 6, 7, 7, 7, 9 adalah ......

SImpangan rata-rata dari data 6, 6, 7, 7, 7, 9 adalah ......

  1. 0

  2. 0,67

  3. 1,16

  4. 1,37

  5. 2,33

Jawaban:

S R equals fraction numerator sum from i equals 1 to n of open vertical bar X subscript i minus top enclose X close vertical bar over denominator n end fraction equals fraction numerator open vertical bar X subscript 1 minus top enclose X close vertical bar plus... plus open vertical bar X subscript n minus top enclose X close vertical bar over denominator n end fraction    C a r i space r a t a minus r a t a space t e r l e b i h space d a h u l u space  top enclose X equals fraction numerator 6 plus 6 plus 7 plus 7 plus 7 plus 9 over denominator 6 end fraction  top enclose X equals 42 over 6  top enclose X equals 7    S e h i n g g a space s i m p a n g a n space r a t a minus r a t a space d a r i space d a t a space t e r s e b u t space a d l a h space  S R equals fraction numerator open vertical bar 6 minus 7 close vertical bar plus open vertical bar 6 minus 7 close vertical bar plus open vertical bar 7 minus 7 close vertical bar plus open vertical bar 7 minus 7 close vertical bar plus open vertical bar 7 minus 7 close vertical bar plus open vertical bar 9 minus 7 close vertical bar over denominator 6 end fraction  S R equals fraction numerator 1 plus 1 plus 0 plus 0 plus 0 plus 2 over denominator 6 end fraction  S R equals 4 over 6  S R equals 0 comma 67

0

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