UKURAN PEMUSATAN
NAMA : KHUSNUL YAQIN
NIM : SIA201017
MAKUL : STATISTIK
1. MEAN DATA BERKELOMPOK
DAFTAR UMUR SANTRI PONPES
UMUR SISWA
|
F
|
X
|
F.X
|
5 – 8
|
20
|
6,5
|
130
|
9 – 12
|
15
|
10,5
|
157,5
|
13 – 16
|
25
|
14,5
|
362,5
|
17 – 20
|
30
|
15,5
|
555
|
21 – 25
|
10
|
23
|
230
|
Jumlah
|
73
|
1435
| |
-
x =
|
∑ fi xi
|
∑f i
|
X= 1435/73
= 19,65753
2. RATA-RATA HITUNG
Nilai acak
4, 7, 8, 2, 12, 9, 6, 14, 11, 5 n=10
X= (4+7+8+2+12+9+6+14+11+5)/10
= 78/10
= 7,8
3. HITUNG TERTIMBANG
Pemprograman Matematika
|
A
|
4
|
4
|
16
|
Sistem Basis data
|
A
|
4
|
4
|
16
|
Strktur data
|
B
|
4
|
3
|
12
|
Agama
|
B
|
2
|
3
|
6
|
Rangkaian digital
|
A
|
3
|
4
|
12
|
HCI
|
B
|
3
|
3
|
9
|
JUMLAH
|
20
|
71
| ||
-
x =
|
∑ wi xi
|
∑w i
|
X =∑ 71
∑20
X = 71
20
X = 3,55
4. MEAN GEOMETRIK
Laju pertumbuhan penduduk lima tahun terakhir Desa Gendoang Kec. Moga
Periode I = 6%, II = 7%, III = 8%, IV= 9%, V= 10%
Log G = log x1 + log x2 + log x3 + log x4 + log x5
n
log G = log 6 + log 7+ log 8+ log 9+ log 10
5
log G = 0,78 + 0,84 + 0,90 + 0,95 + 1
5
Log G = 4,47
5
Log G = 0,894
