Monday, December 17, 2012

Pie Charts and Frequency Diagrams - BBC Math


Pie Charts and Frequency Diagrams
You scored 4 out of 4
1. Sixty people were asked to name their favourite season. The results are given below:
SeasonNumber of people
Spring15
Summer25
Autumn16
Winter4
If a pie chart is to be drawn, calculate the angle required for one person. 
You said: 
Well done - this is the correct angle.
2. If a pie chart is to be drawn, calculate the angle required for the summer. 
You said: 150°
Well done, this is the correct angle.
3. A group of children were asked how they travel to school. The results are shown in the frequency diagram below:
frequency diagram
How many children were questioned in this survey
You said: 18
Well done. You added up the numbers in each column.
4. Which of the following pie charts shows the theoretical outcomes of 300 throws of a die?
pie charts

 









You said: B
Well done. You noticed that there's an equal chance of throwing each number, so the numbers would be the same size in the pie chart.

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