Menghitung Nilai Korelasi Product Moment
Quiz
•
Mathematics
•
11th Grade
•
Medium
SYAHRIAN SYAHRIAN
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa rumus untuk menghitung koefisien korelasi product moment?
r = Σx + Σy
r = n(Σx - Σy) / (Σx² + Σy²)
r = (Σx² + Σy²) / n
r = (nΣxy - ΣxΣy) / √[(nΣx² - (Σx)²)(nΣy² - (Σy)²)]
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diberikan data X: [2, 4, 6] dan Y: [3, 5, 7]. Hitunglah koefisien korelasi antara X dan Y.
1
2
0
-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika koefisien korelasi antara dua variabel adalah 0,8, apa arti dari nilai tersebut?
Hubungan yang kuat dan negatif antara dua variabel.
Tidak ada hubungan antara dua variabel.
Hubungan yang lemah dan negatif antara dua variabel.
Hubungan yang kuat dan positif antara dua variabel.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diberikan data X: [1, 2, 3, 4] dan Y: [2, 4, 6, 8]. Hitunglah koefisien korelasi menggunakan rumus product moment.
-1
2
0
1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebutkan langkah-langkah dalam menghitung koefisien korelasi product moment!
Koefisien korelasi product moment dapat dihitung dengan rumus r = (Σ(Xi - X̄)(Yi - Ȳ)) / (sqrt(Σ(Xi - X̄)²) * sqrt(Σ(Yi - Ȳ)²)).
Menghitung jumlah total dari semua variabel
Menghitung rata-rata dari semua data
Menentukan nilai maksimum dan minimum dari data
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika koefisien korelasi adalah -1, apa yang dapat disimpulkan tentang hubungan antara dua variabel?
Hubungan positif sempurna antara dua variabel.
Hubungan negatif sempurna antara dua variabel.
Tidak ada hubungan antara dua variabel.
Hubungan acak antara dua variabel.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diberikan data X: [5, 10, 15] dan Y: [10, 20, 30]. Hitunglah koefisien korelasi dan jelaskan hasilnya.
0.5
2
1
0
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