Pertanyaan

SImpangan rata-rata dari data 15, 14, 12, 15, 13, 15 adalah ....

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F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

Jawaban terverifikasi

Pembahasan

$SR equals fraction numerator sum from straight i equals 1 to straight n of open vertical bar straight X subscript straight i minus top enclose straight X close vertical bar over denominator straight n end fraction equals fraction numerator open vertical bar straight X subscript 1 minus top enclose straight X close vertical bar plus... plus open vertical bar straight X subscript straight n minus top enclose straight X close vertical bar over denominator straight n end fraction Cari space rata minus rata space terlebih space dahulu space top enclose straight X equals fraction numerator 15 plus 14 plus 12 plus 15 plus 13 plus 15 over denominator 6 end fraction top enclose straight X equals 84 over 6 top enclose straight X equals 14 Sehingga space simpangan space rata minus rata space dari space data space tersebut space adalah space SR equals fraction numerator open vertical bar 15 minus 14 close vertical bar plus open vertical bar 14 minus 14 close vertical bar plus open vertical bar 12 minus 14 close vertical bar plus open vertical bar 15 minus 14 close vertical bar plus open vertical bar 13 minus 14 close vertical bar plus open vertical bar 15 minus 14 close vertical bar over denominator 6 end fraction SR equals fraction numerator 1 plus 0 plus 2 plus 1 plus 1 plus 1 over denominator 6 end fraction SR equals 6 over 6 SR space equals space 1$