Kamis, 13 Desember 2012



Tugas Statistik Pendidikan
Daya Serap Dan Ketuntasan Siswa Kelas X 2
Data
80, 80, 60, 80, 60, 100, 80, 80, 80, 100, 100, 80, 60,40, 80, 80, 70, 80, 70, 80.
Data Frekuensi
100 - 40 = 60
Banyak Kelas (Interval)
            K = 1 + (3,3 * log n)
                = 1 + (3, 3 * log 20)
                = 1 + (3,3 * 1, 3010)
                = 1 + 4, 2933
               = 5,2933
`              = 6
Panjag kelas
            = R/K
            =60/6
            =10
Ujung Kelas Bawah
            = 40
Perolehan Nilai
Banyak ( Fi )
Xi
Fi . Xi
40 -60
1
50
50
60-70
3
65
195
70-80
2
75
150
80-90
11
85
935
90-100
3
95
285

N = 21

= 1615

X= 1615 / 21= 7,8.


TUGAS IV
Ø  Data
80, 80, 60, 80, 60, 100, 80, 80, 80, 100, 100, 80, 60,40, 80, 80, 70, 80, 70, 80.
  • Mengurutkan Data
40, 60, 60, 60, 70, 70, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 100, 100, 100.
·         Mean
=          X1 + X2 +X3+......X20
               20                            
=  40 + 60 + 60+..........100
= 68, 5
  • Modus
= 80
  • Median
X1 - X20 = 40 + 100
                        2
            = 90                
  • R = NT – NR                                      K = 1 + ( 3, 3 log n)
    = 100 – 40                                            = 1 + ( 3,3 log 20)
     = 60                                                     = 1 + (3,3 . 1, 3010)
                                                                 = 5, 2933 = 6.

  • Ujung Bawah
= 40
  • P = 60
       6
    = 10

Frekuensi
fi
xi
fi. xi
Fi
40 – 47
2
16
32
2
48 – 54
-



55 – 62
4
70
280
6
63 – 70
3
86
258

71 – 78
-


9
79 – 86
22
83
6889
31
87 - 94
-



95 - 100
4
125
500
35






  • Modus
Mo = Bbmo + P(         b1        )
                               b1 + b2
     = 78, 5 + 10 (     22                        )
                               22 + 22
    = 78, 5 + 10 ( 0,5)
    = 78, 5 + 5
   = 83, 5 = 9

  • Median
= Bbme + P ( n/2 – Fme )
                            Fme
=78, 5    + P ( 17, 5 – 0 )
                             0
= 78, 5    + 10 ( 0, 7954)
= 78, 5    + 7, 1586
= 86, 1454
= 9
Q1 = ¼ *21                 D3 = 3/10 * 21                        P10 = 10/100 * 21
      = 5, 25                         = 6,3                                         = 2,1
Q2 = 2/4 * 21              D5 = 5/10 *                             P15 = 15/100 * 21
     = 4                                =10, 5                                       = 3, 15
Q3 = ¾ * 21                D7 = 7/10 * 21                        P20 = 20/100 * 21
      = 15,75                        = 10,5                                       = 42


Tugas Statistik Pendidikan
Daya Serap Dan Ketuntasan Siswa Kelas X 2
Data
80, 80, 60, 80, 60, 100, 80, 80, 80, 100, 100, 80, 60,40, 80, 80, 70, 80, 70, 80.
Data Frekuensi
100 - 40 = 60
Banyak Kelas (Interval)
            K = 1 + (3,3 * log n)
                = 1 + (3, 3 * log 20)
                = 1 + (3,3 * 1, 3010)
                = 1 + 4, 2933
               = 5,2933
`              = 6
Panjag kelas
            = R/K
            =60/6
            =10
Ujung Kelas Bawah
            = 40
Perolehan Nilai
Banyak ( Fi )
Xi
Fi . Xi
40 -60
1
50
50
60-70
3
65
195
70-80
2
75
150
80-90
11
85
935
90-100
3
95
285

N = 21

= 1615

X= 1615 / 21= 7,8.