Jawaban:
mean=jumlah data/banyak data
=(27×3)+(28×5)+(29×5)+(30×4)+(31×3)/20
=81+140+145+120+93/20
=579/20
=28,95
kalau benar kasih bintang lima ya!!!
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Jawaban:
mean=jumlah data/banyak data
=(27×3)+(28×5)+(29×5)+(30×4)+(31×3)/20
=81+140+145+120+93/20
=579/20
=28,95
kalau benar kasih bintang lima ya!!!