
Pengolahan Data
Presentation
•
Mathematics
•
6th Grade
•
Medium
Syari Nurulita
Used 6+ times
FREE Resource
5 Slides • 3 Questions
1
2
Perhatikan ilustrasi untuk menentukan rata-rata hitung !
B. RATA-RATA HITUNG
Rata-Rata/ Mean =
Jumlah Data
Banyak Data
3
Contoh
Tentukan rata-rata banyak siswa setiap kelas berikut!
Banyak Data= Banyak Kelas = 6
Jumlah Data= Jumlah semua siswa
=30+32=31+31+32+30 = 186
=
Jumlah Data
Banyak Data
Rata-Rata/ Mean =
186
6
=
31
4
Multiple Choice
Berikut adalah diagram hasil penjualan buah mangga (dalam kg) selama lima hari.
Rata – rata penjualan buah mangga setiap hari adalah ….
30
31
32
33
5
Modus adalah data yang paling sering muncul atau data yang memiliki frekuensi paling besar
MODUS
Contoh :
Tentukan modus dari setiap kumpulan data berikut !
33, 31, 30, 33, 32, 31, 30, 34, 33, 30, 34
Data terurut
30, 30, 30, 31, 31, 32, 33, 33, 33, 34, 34
6
Fill in the Blanks
Type answer...
7
Median
Median adalah nilai tengah dari sekumpulan data yang terurut.
Contoh :
Tentukan median dari sekumpulan data berikut!
a. 8, 6, 9, 7, 7, 6, 6, 8, 9, 8, 7
Data setelah diurutkan :
6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9
Banyak Data : 11 ( data ganjil)
Median : 7
Data setelah diurutkan :
Banyak Data : 10 ( data genap)
b. 7, 7, 6, 8, 8, 9, 7, 9, 6, 8
6, 6, 7, 7, 7, 8, 8, 8, 9, 9
Median :
7+8
2
=
7,5
8
Poll
Pada suatu kelas didapatkan hasil nilai ulangan siswa sebagai berikut :
65, 70, 85, 90, 80, 60, 70, 80, 80, 80, 50
Median data tersebut adalah...
60
70
80
90
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