Data Nilai
: 70,
75, 60, 45, 50, 65, 60, 60, 55, 75, 65,
65, 50, 70,50
65, 60, 60, 70, 60, 65, 70, 75, 60,
60, 65, 75, 65, 70, 60
60, 70, 70, 65, 60, 75, 65, 65, 60, 65, 60, 70, 75, 65, 70
1. Rentangan data
R = 75 – 45
= 30
2. Banyaknya kelas interval
K = 1 + (3,3 x log n)
= 1 + (3,3 x log 45)
= 1 + (3,3 x 1,6532)
= 1 + 5,45556
= 6,45556
K = 7
3. Panjang kelas
P = R/k
= 30/7
= 4,28
Hasil MID
|
Banyaknya mahasiswa (f1)
|
X1
|
F1 . X1
|
45 - 49
|
1
|
94
|
94
|
50 – 54
|
3
|
52
|
156
|
55 – 59
|
1
|
114
|
114
|
60 -64
|
13
|
9,5
|
1235
|
65 – 69
|
11
|
67
|
737
|
70 – 74
|
9
|
72
|
648
|
75 - 79
|
6
|
25,6
|
1536
|
75 - 79
|
6
|
25,6
|
1536
|
JUMLAH
|
44
|
4520
|
-
X = 4520
45
= 102,72
=102
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