Question

Tolong dibantu dengan caranya ?....

Answer 1

Verified answer

Mean = {(1 × 140) + (1 × 141) + (2×142) + (5×143)+(3×144)+(4×145)+(2×146)+(4×147) + (5×148) + (2×149) + (1 × 150)} / (1 + 1 + 2 + 5 + 3 + 4 + 2 + 4 + 5 + 2 + 1)
= (140+141+284 + 715 + 432 + 580 + 292 + 588 + 740 + 298 + 150) / 30
= 4360 / 30
= 145,3

median = (nilai ke 15 + ke 16 ) ÷ 2
=( 145 + 145 ) ÷ 2
= 145

modus = 143 & 148