PIE CHARTS AND FREQUENCY DIAGRAMS

Welcome to your PIE CHARTS AND FREQUENCY DIAGRAMS

The weights of A, B and C are in the ratio 1: 4: 5. Calculate the angle representing B on a pie-chart.
The cooking times for three difference meals P, Q and R are in the ratio 2: 3: p. On a pie chart, the angle corresponding to R is 160°. What is the value of p?
An opinion poll of 3000 people is represented in a pie chart. The angle corresponding to ‘don’t know’ is 27°. How many people in the sample did not know?
A recipe of scrambled eggs uses the following ingredients.

What is the angle used to represent cheese?
A recipe of scrambled eggs uses the following ingredients.

What is the angle used to represent eggs?
The pie chart below shows the number of votes for candidates A, B and C in an election.

What percentage of votes was cast in favour of candidate C?
The pie chart below shows the number of votes for candidates A, B and C in an election.

What percentage of votes was cast in favour of candidate A?
A firm manufacturing phone sold 15% of its products in France. The total sale of the firm is represented in a pie chart. The angle of sector representing the sale in Singapore is 72°.
What would be angle of sector representing France?
A firm manufacturing phone sold 15% of its products in France. The total sale of the firm is represented in a pie chart. The angle of sector representing the sale in Singapore is 72°.
What percentage of total products was sold in Singapore?
The time duration of various different batteries was recorded and a frequency diagram is plotted as shown below.

Which duration class has the highest number of batteries?
The time duration of various different batteries was recorded and a frequency diagram is plotted as shown below.

Which duration class has the lowest number of batteries?
The time duration of various different batteries was recorded and a frequency diagram is plotted as shown below.

What is the total number of batteries being tested?
The time duration of various different batteries was recorded and a frequency diagram is plotted as shown below.

How many batteries had duration of less than or equal to 15 hours?
How many batteries had duration of more than 25 hours?
What is the range of the duration of batteries?