Dari tabel disamping, banyak siswa yang mendapat nilai lebih dari nilai rata-rata adalah ....
Mean, Median, Modus

Quiz
•
Mathematics
•
8th - 9th Grade
•
Medium
Siti Maemunah
Used 38+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
8 orang
10 orang
12 orang
22 orang
Answer explanation
cari dulu nilai rata-ratanya
mean = ( X4)+(9x1)+(10x1) : (2+6+10+6+4+1+1)
= 191 : 30 = 6,36
jadi, anak yang mendapat nilai lebih dari rata-rata adalah dimulai siswa yang mendapat nilai 7 = 6 + 4 + 1+1 = 12 orang
2.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Mean dari data 7, 8, 5, n, 6, 5, 9, 8 adalah 6,3. Tentukan nilai n!
Answer explanation
lihat gambar disamping,
jadi nilai n = 3
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Tentukan median dari data 8, 9, 3, 4, 8, 7, 6, 5, 7, 4, 6, 6, 8!
Answer explanation
Median adalah nilai tengah setelah data diurutkan.
3, 4, 4, 5, 6, 6, 6, 7, 7, 8,8,8,8
median = 6 (warna merah)
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Mean dari data : 6, 8, 7, 6, 6, 5, 7, 8, 8, 8, 7, 9 adalah ....
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Nilai rata-rata tes matematika 15 siswa adalah 6.6. Bila nilai Dinda disertakan, maka nilai rata-rata menjadi 6,7. Nilai Dinda dalam tes matematika tersebut adalah ....
8,2
7,8
7,6
6,2
Answer explanation
misal n = nilai Dinda
(15 x 6,6 + n ) : 16 = 6,7
99 + n = 6,7 x 16
n = 107,2 - 99
n = 8,2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kuartil bawah (Q1) dari data 6, 9, 3, 7, 5, 3, 6, 7, 8, 5 adalah ....
5
6
7
8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Simpangan/Jangkauan Kuartil dari 8, 6, 6, 7, 5, 5, 6, 8, 9, 9 adalah ....
1,5
2
2,5
3
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