Jawaban dan cara :
(Jawaban yang ditebalkan)
a.) 5, 5, 6, 6, 7, 7, 8, 8
Modus = 5, 6, 7, 8
Median = 8/2 = 4 (dan 5 karena frekuensi genap)
= 6, 7
Mean =
5 x 2 = 10
6 x 2 = 12
7 x 2 = 14
8 x 2 = 16
Total = 52
Frekuensi = 8
Mean = 52/8
= 6,5
b.) 10, 11, 11, 12, 12, 13, 13, 14, 14, 15
Modus = 11, 12, 13, 14
Median = 10/2 = 5 (dan 6 karena frekuensi genap)
= 12, 13
Mean =
10 x 1 = 10
11 x 2 = 22
12 x 2 = 24
13 x 2 = 26
14 x 2 = 28
15 x 1 = 15
Total = 125
Frekuensi = 10
Mean = 125/10
= 12,5
c.) 4, 5, 5, 5,5, 5,5, 6, 6, 6, 7, 7, 7,5, 8, 8, 8,5, 9
Modus = 6
Median = 15/2 = 7,5 = 8
= 6
Mean =
4 x 1 = 4
5 x 2 = 10
5,5 x 2 = 11
6 x 3 = 18
7 x 2 = 14
7,5 x 1 = 7,5
8 x 2 = 16
8,5 x 1 = 8,5
9 x 1 = 9
Total = 98
Frekuensi = 15
Mean = 98/15
= 6,53
Semoga membantu
Dengan hormat,
Ananda
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