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Video 1: What are frequency polygons?
Video 2: Examples of frequency polygons
Video 3: Further examples of frequency polygons
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By the end of this unit you will be able to:
- Calculate measures of central tendency and percentiles on grouped data.
- Construct a frequency polygon.
- Construct a line graph.
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This video explores how to find the mean from data in a table.
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Why do astronauts appear weightless despite being near the Earth?
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This video explores the histogram: which is one of the ways in which to present data.
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Video 1: How to create a line graph based on data
Video 2: Examples of different line graphs
Video 3: Further examples of line graphs
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Basics of gravity and the Law of Universal Gravitation.
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This unit is about how things move along a straight line or, more scientifically, how things move in one dimension. Examples of this would be the movement (motion) of cars along a straight road or of trains along straight railway tracks.
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This video explains how pie charts can be used to display data in a more 'user-friendly' way.