Page 85 - Steady Mate Tg1 - Book B

Matematik Tingkatan 1 Bab 12 Pengendalian Data

I Jawab soalan yang berikut. TP 4 ARAS S
Answer the following questions.

Contoh 1. Carta palang di sebelah
menunjukkan jumlah 80
Carta palang di sebelah jualan jam tangan di
menunjukkan jumlah 200 empat buah kedai. 60
jualan cermin mata hitam The bar chart shows the Bilangan jam tangan Number of watches
di empat buah kedai. 150 total sales of watches in 40
The bar chart shows the Bilangan cermin mata hitam Number of pairs of sunglasses 100 four shops. 20
total sales of sunglasses in (a) Kedai manakah
four shops. 50 yang menjual 0
(a) Kedai manakah paling banyak jam P Q R S
yang menjual paling 0 Kedai / Shop
A B C D tangan?
banyak cermin mata Kedai / Shop Which shop has the most sales of watches?
hitam?
(b) Hitung purata jualan jam tangan bagi setiap kedai
Which shop has the most sales of sunglasses?
itu.
(b) Hitung purata jualan cermin mata hitam bagi setiap kedai
Calculate the average sales of watches per shop.
itu.
Calculate the average sales of sunglasses per shop.
(a) Kedai Q / Shop Q
(b) Purata jualan 50 + 80 + 70 + 40
(a) Kedai C / Shop C =
Average sales 4
(b) Purata jualan = 100 + 125 + 200 + 175 240
Average sales 4 = 4
600
= = 60 utas jam tangan / watches
4
= 150 cermin mata hitam /
paris of sunglasses

Contoh 2. Carta pai di sebelah
menunjukkan makanan
Carta pai di sebelah menunjukkan Epal kegemaran bagi sekumpulan Nasi
lemak
buah-buahan kegemaran bagi Apples Pisang Ayam
Bananas murid. 144° goreng
sekumpulan murid. Anggur 108° The pie chart shows the favourite Piza 36° Fried
The pie chart shows the favourite fruits Grapes food of a group of students. Pizza chicken
of a group of students. 54° Nanas Diberi 20 orang murid suka
Diberi 12 orang murid menggemari Oren Pineapples makan ayam goreng dan 20% Burger
pisang dan 10% daripada jumlah Oranges daripada jumlah murid suka
murid menggemari epal. makan nasi lemak.
Given that 12 students like to eat bananas and 10% of the total Given that 20 students like to eat fried chicken and 20% of the
students like to eat apples.
total students like to eat nasi lemak.
(a) Apakah saiz sudut sektor bagi epal? (a) Apakah saiz sudut sektor bagi nasi lemak?
What is the angle of sector for apples?
What is the angle of sector for nasi lemak?
(b) Berapakah bilangan murid yang menggemari anggur? (b) Berapakah bilangan murid yang suka makan piza?
How many students like to eat grapes?
How many students like to eat pizza?
10
(a) × 360° = 36° 20
100 (a) × 360° = 72°
100
90
(b) × 12 = 10 orang murid / students 36
108 (b) × 20 = 5 orang murid / students
144

83 © Penerbitan Pelangi Sdn. Bhd.