desi
TRANSCRIPT
Nama : Desi Anyta SarySms/Unit : III/4Jrs/Prodi : Tarbiyah/PMAEmail : [email protected]. Hp : +6281990145227
Kelas Interval fi xi fi . xi0 – 4 8 2 165 – 9 7 7 49
10 – 14 10 12 12015 – 19 12 17 20420 - 24 13 22 286Jumlah 50 675
Rata-rata Hitung
x = ∑fx∑ f
= 67550
= 13.5
Rata-rata Hitung dan Cording
Kelas Interval f x c fc fx0 – 4 8 2 -1 -8 165 – 9 7 7 0 0 49
10 – 14 10 12 1 10 12015 – 19 12 17 2 24 20420 - 24 13 22 3 39 286Jumlah 50 65 675
x = x0+ p (∑fc∑ f )= 7 + 5 ( 65
50 )= 7 + 5 (1.3)= 7 + 6.5
= 13.5
Rata-rata Harmonik
Kelas Interval fi xi fixi
0 – 4 8 2 4.0000005 – 9 7 7 1.000000
10 – 14 10 12 0.83333315 – 19 12 17 0.70588220 - 24 13 22 0.590909Jumlah 50 7.130125
Jadi
H= ∑ fi
∑( fixi )=
507.130125
= 7.0125
Modus
Kelas Interval fi xi0 – 4 8 25 – 9 7 7
10 – 14 10 1215 – 19 12 1720 - 24 13 22
b = 9.5p = 5b1 = 10 – 7 = 3b2 = 10 – 12 = -2
M o=b+ p( b1
b1+b2)
= 9.5 + 5 ( 31 )
= 9.5 + 5 (3) = 9.5 + 15
= 24.5