5dregensleyerjawaban nomer 39 rata-rata = jumlah data / banyak data rata = 4,5+4,5+4+4+4+3,5+4+3,5/8 = 32/8 = 4
jawaban nomer 40 data tabel n = banyak data = 1+3+4+3+4 = 15 jumlah data jum = (6x1) + (7x3) + (8x4) + (9x3) + (10x4)/ = 6 + 21 + 32 + 27 + 40 = 126 rata-rata data tabel adalah rat = jum / n = 126/15 = 8,4
rata-rata = jumlah data / banyak data
rata = 4,5+4,5+4+4+4+3,5+4+3,5/8
= 32/8
= 4
jawaban nomer 40
data tabel
n = banyak data
= 1+3+4+3+4
= 15
jumlah data
jum = (6x1) + (7x3) + (8x4) + (9x3) + (10x4)/
= 6 + 21 + 32 + 27 + 40
= 126
rata-rata data tabel adalah
rat = jum / n
= 126/15
= 8,4