Page 10 - TOP CLASS MATHS T5 KSSM

Mathematics Form 5 Chapter 7 Measures of Dispersion for Grouped Data

(b) Daily wage (RM) Frequency Cumulative frequency
Upah harian (RM) Kekerapan Kekerapan longgokan
46 – 53 12 12

54 – 61 17 + 29
62 – 69 23 + 52
+
70 – 77 19 71
+
78 – 85 5 76

(c) Diameter Frequency Cumulative frequency
(cm) Kekerapan Kekerapan longgokan
1.2 – 1.7 25 25
1.8 – 2.3 36 + 61

2.4 – 2.9 47 + 108
+
3.0 – 3.5 29 137
+
3.6 – 4.1 18 155

5. Complete each of the following tables. Then, construct a histogram and a cumulative histogram to represent
the data. PL 3
Lengkapkan setiap jadual berikut. Kemudian, bina histogram dan histogram longgokan untuk mewakili data tersebut.

Example
Length (cm) Frequency Lower boundary Upper boundary Cumulative frequency
Panjang (cm) Kekerapan Sempadan bawah Sempadan atas Kekerapan longgokan
1 – 5 2 0.5 5.5 2
6 – 10 4 5.5 10.5 6
11 – 15 7 10.5 15.5 13
16 – 20 13 15.5 20.5 26
21 – 25 10 20.5 25.5 36
26 – 30 4 25.5 30.5 40

Histogram: Cumulative histogram:
Histogram longgokan:
Frequency
Kekerapan Cumulative frequency
Kekerapan longgokan
14
40
12
30
10
20
8
10
6
0
0.5 5.5 10.5 15.5 20.5 25.5 30.5
4 Length (cm)
Panjang (cm)
2

0
0.5 5.5 10.5 15.5 20.5 25.5 30.5 Label the x-axis using boundaries.
Length (cm) Label paksi-x menggunakan sempadan.
Panjang (cm)

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