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Data berat badan siswa kelas VI SD Harapan Bangsa ...

Data berat badan siswa kelas VI SD Harapan Bangsa seperti berikut.

begin mathsize 14px style 32 comma space 34 comma space 34 comma space 33 comma space 34 comma space 33 comma space 32 comma space 35 comma space 34 comma space 32 33 comma space 34 comma space 34 comma space 32 comma space 33 comma space 34 comma 32 comma space 33 comma space 33 comma space 34 end style

Tentukan rata-rata!

Jawaban:

Nilai Rata rata (Mean)

table attributes columnalign right center left columnspacing 0px end attributes row cell x with bar on top end cell equals cell fraction numerator sum for blank of f subscript i times x subscript i over denominator sum for blank of f subscript i end fraction end cell row blank equals cell fraction numerator f subscript 1 times x subscript 1 plus f subscript 2 times x subscript 2 plus... plus f subscript n times x subscript n over denominator f subscript 1 plus f subscript 2 plus... plus f subscript n end fraction end cell row blank equals cell fraction numerator 5 times 32 plus 6 times 33 plus 8 times 34 plus 1 times 35 over denominator 5 plus 6 plus 8 plus 1 end fraction end cell row blank equals cell fraction numerator 160 plus 198 plus 272 plus 35 over denominator 20 end fraction end cell row blank equals cell 665 over 20 end cell row blank equals cell 33 comma 25 end cell end table

Jadi, rata-rata = 33,25.

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