Markah Kekerapan

40-44 3

45-49 3

51-55 3

56-60 5

61-65 2

66-70 3

71-75 3

76-80 3

81-85 8

86-90 6

91-95 4

96-100 2

I. Peratus gagal:

x 100

= 0.2 x 100

= 20%

II. Peratus lulus:

x 100

= 0.8 x 100

= 80%

III. Min:

(54+45+43+81+80+74+67+46+57+66+56+78+95+96+59+88+84+83+82+64+80

+71+88+97+81+94+49+51+52+70+92+88+91+63+87+58+84+88+83+89+81+71

+60+42+44) ÷ 45

= (3252) ÷ 45

= 72.267

IV. Mod:

88 diulang sebanyak 4 kali

= 88

V. Media:

(n+1) ÷ 2

= (45+1) ÷ 2

= (46) ÷ 2

= 23rd

=23rd = 78

42, 43, 44, 45, 46, 49, 51, 52, 54, 56, 57, 58, 59, 60, 63, 64, 66, 67, 70, 71, 71, 74, 78,

80, 80, 81, 81, 81, 82, 83, 83, 84, 84, 87, 88, 88, 88, 88, 89, 91, 92, 94, 95, 96, 97

VI. Sisihan Piawai:

Selang Kelas Kekerapan X2

41-45 4 16

46-50 2 4

51-55 3 9

56-60 5 25

61-65 2 4

66-70 3 9

71-75 3 9

76-80 3 9

81-85 8 64

86-90 6 36

91-95 4 16

96-100 2 4

S2 = ∑X2 – (∑X)2 / N

N-1

= 205 – (45)2 / 12 12-1

= 205 – (2025) / 12 11

= 205 – 168.75 11

= 36.25 11

= √3.295

= 1.815