8.0 DATA HANDLING AND LIKELIHOOD (YEAR 6)

What is the value of angle that represent the largest part?

• 90⁰

• 45⁰

• 180⁰

Answer explanation

The value of angle for a quarter of the circle is 45⁰ + 45⁰ = 90⁰.

Two quarters of a circle is equal to half a circle. Therefore, the value of the angle of a half a circle is 90⁰ + 90⁰ = 180⁰

The pie chart shows food bought by a group of pupils during recess. 12 pupils bought nasi lemak.

What is the total number of pupils who bought food during recess.

• 24 pupils

• 30 pupils

• 48 pupils

• 18 pupils

Answer explanation

12 pupils represent a quarter of the circle.

Total number of pupils = 12 + 12 + 12 + 12

= 48 pupils

The pie chart shows four types of fruits sold. The mass of the rambutan sold is 30kg.

Which statement is false if the mass of langsat and mangosteen sold is the same?

• The mass of rambutan is 30kg and the angle is 90⁰.

• The mass of mango is twice the mass of rambutan.

• The mass of rambutan is half the mass of mangosteen.

• The mass of langsat and mangosteen is equal.

Answer explanation

The mass of mangosteen is half the mass of rambutan.

Label the pie chart based on the table given.

• A: Mammals

  B: Reptiles

  C: Fish

  D: Birds

• A: Birds

  B: Reptiles

  C: Fish

  D: Mammals

• A: Birds

  B: Reptiles

  C: Mammals

  D: Fish

• A: Fish

  B: Reptiles

  C: Birds

  D: Fish

Answer explanation

The incomplete pie chart and table show the data of 24 pupils' favourite doughnut flavours.

45⁰ represents peanut doughnuts and the number is ______.

• 6

• 5

• 4

• 3

Answer explanation

45⁰ is half of 90⁰ or 6 doughnuts.

Half of 6 doughnuts is 3 doughnuts.

The incomplete pie chart and table show the data of 24 pupils' favourite doughnut flavours.

The number of most favourite doughnuts is (a)_____ abd is represented by (b)_____ angle.

• (a) 12

  (b) 180⁰

• (a) 14

  (b) 180⁰

• (a) 12

  (b) 90⁰

• (a) 6

  (b) 90⁰

Answer explanation

Strawberry is the most favourite doughnuts because there are 12 pupils like the flavour.

90⁰ + 90⁰= 180⁰

Which pie chart is label correctly?

• A

• B

• None

Complete the number of athletes in the pie chart if the number of athletes from school P is 3 athletes.

• Q = 9

  R = 3

  S = 12

• Q = 6

  R = 3

  S = 12

• Q = 12

  R = 3

  S = 6

• Q = 6

  R = 2

  S = 12

Answer explanation

P and R have the same value of angles which is 45⁰. So, Q has 3 athletes.

R is twice of Q so Q has 6 athletes.

Q is twice of S so Q has 12 athletes.

The pie chart shows the number of participants for a Mathematics e-Quiz. The number of participants from Peris 10.

Calculate the number of participants from Johor.

• 20

• 30

• 40

• 10

Answer explanation

The number of participants of Malacca is twice of Perlis. So, number of participants of Malacca is 20.

The number of participants of Johor is twice of Malacca. So, number of participants of Johor is 40.

The pie chart shows the number of participants for a Mathematics e-Quiz. The number of participants from Peris 10.

Find the number of male participants if the number of female participants is a quarter of the total participants.

• 20

• 30

• 40

• 10