Page 12 - TOP CLASS MATHS T5 KSSM

Mathematics Form 5 Chapter 7 Measures of Dispersion for Grouped Data

Histogram: Cumulative histogram:
Histogram longgokan:

Frequency
Kekerapan

14
Cumulative frequency
12 Kekerapan longgokan

10 50
8 40

6 30

4 20

2 10

0 0
19.5 29.5 39.5 49.5 59.5 69.5 79.5 19.5 29.5 39.5 49.5 59.5 69.5 79.5
Marks Marks
Markah Markah

6. Draw the frequency polygon on each of the following histograms. PL 3
Lukis poligon kekerapan daripada setiap histogram yang berikut.

Example
(a) Frequency
Kekerapan
Frequency
Kekerapan
20
8
16
6
12
4
8
2
4
0
1.5 2.5 3.5 4.5 5.5 6.5 7.5 0
Time (minutes) 19.5 39.5 59.5 79.5 99.5 119.5 139.5
Masa (minit) Savings (RM)
Simpanan (RM)

Frequency polygon consists of straight lines, not curves.
Poligon kekerapan terdiri daripada garis lurus, bukan lengkung.

(b) (c)
Frequency Frequency
Kekerapan Kekerapan
40 100

30 80
20 60

10 40
0 20
6.5 8.5 10.5 12.5 14.5 16.5 18.5
Distance (km)
Jarak (km) 0
40.5 50.5 60.5 70.5 80.5 90.5 100.5
Mass (kg)
Jisim (kg)

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