Dik :
berat badan =45,46,47,48,49,50
frekuensi =4,3,4,3,4,2
dit:
rata rata berat badan?
dan berat badan nya diatas rata rata?
mohon bantuan
berat badan =45,46,47,48,49,50
frekuensi =4,3,4,3,4,2
dit:
rata rata berat badan?
dan berat badan nya diatas rata rata?
mohon bantuan
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46 x 3 = 138
47 x 4 = 188
48 x 3 = 144
49 x 4 = 196
50 x 2 = 100
lalu 180 + 138 + 188 + 144 + 196 + 100 = 946
rata rata berat badan = 946 : 20 = 47,3
dan berat badan nya diatas rata rata ada 9