TUGAS 1
Soal
Sajikanlah 80 buah
data (nilai) siswa dengan skala 0-100, kemudian susun ke dalam tabel distribusi
frekuensi dengan pendekatan Pendekatan Edward W. Minium dan
Pendekatan Rumus Sturgess.
Nilai
Sumulatif SDN Sukaasih Kelas V Pelajaran Matematika
|
85
|
60
|
80
|
80
|
80
|
90
|
81
|
70
|
90
|
60
|
|
60
|
75
|
85
|
56
|
80
|
85
|
82
|
70
|
79
|
88
|
|
56
|
70
|
56
|
80
|
70
|
90
|
70
|
75
|
60
|
65
|
|
60
|
75
|
75
|
75
|
60
|
60
|
60
|
60
|
65
|
70
|
|
65
|
60
|
70
|
60
|
59
|
75
|
77
|
80
|
90
|
75
|
|
70
|
80
|
60
|
90
|
59
|
75
|
80
|
86
|
85
|
85
|
|
80
|
58
|
90
|
80
|
57
|
70
|
80
|
75
|
90
|
79
|
|
90
|
85
|
80
|
85
|
80
|
90
|
64
|
85
|
75
|
85
|
Jawab
Diketahui :
Xt = 90
Xr = 56
R = Xt-Xr+1= 90-56+1=35
a.
Pendekatan Edward W. Minium
1.
Xt = 90, dan Xr = 56
2.
R = Xt – Xr + 1 = 90 – 56 +1 = 35
3.
P = 7
4.
K = R : P
a.
K= 35 : 7 = 5
Jadi Xt = 90, Xr = 56, R = 35, P = 7, dan K = 5
Distribusi Frekuensi Nilai Sumulatif Mata Pelajaran
Matematika
dari 80 orang Siswa
SDN Sukaasih
|
No
|
Kelas Interval
|
Turus
|
F
|
|
1
|
84 – 90
|
IIIII IIIII
IIIII IIIII IIIII
|
20
|
|
2
|
77 – 83
|
IIIII IIIII IIIII III
|
18
|
|
3
|
70 – 76
|
IIIII IIIII
IIIII IIII
|
19
|
|
4
|
63 – 69
|
III
|
3
|
|
5
|
56 – 62
|
IIIII IIIII IIIII
IIIII
|
20
|
N= 80
b.
Pendekatan Rumus Sturgress
1.
Xt = 90, dan Xr = 56
2.
R = Xt – Xr + 1
= 90 – 56 + 1 = 35
3.
K = 1 + 3,3 log N
= 1 + 3,3 log
80
= 1+ 3,3 * 1,90
= 7,27 = 7
4.
P = R : K
= 35 : 7 = 5
Jadi Xt = 90, Xr = 56, R = 35, P = 7, dan K = 5
Distribusi Frekuensi Nilai Sumulatif Mata Pelajaran
Matematika
dari 80 orang Siswa
SDN Sukaasih
|
No
|
Kelas Interval
|
Turus
|
F
|
|
1
|
84 – 90
|
IIIII IIIII
IIIII IIIII IIIII
|
20
|
|
2
|
77 – 83
|
IIIII IIIII IIIII III
|
18
|
|
3
|
70 – 76
|
IIIII IIIII
IIIII IIII
|
19
|
|
4
|
63 – 69
|
III
|
3
|
|
5
|
56 – 62
|
IIIII IIIII IIIII
IIIII
|
20
|
N=
80
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