Question

mohon kak, besok kumpul
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Answer 1

D. 6,84

Penjelasan dengan langkah-langkah:

m = jumlah data / banyak data

m = (5×5) + (6×7) + (7×6) + (8×3) + (9×5) / 26

m = 25 + 42 + 42 + 24 + 45 / 26

m = 25 + 42 + 42 + 69 / 26

m = 25 + 42 + 111 / 26

m = 25 + 153 / 26

m = 178 / 26

m = 6,84

꒷ ͝ ꒦ ͝͝͝ ꒷ ͝ ꒦ ͝͝͝ ꒷ ͝ ꒦ ͝͝͝ ꒷ ͝ ꒦ ͝͝͝ ꒷ ͝ ꒦ ͝͝͝ ꒷ ͝ ꒦