Surveying and sampling
Probability and statistics
Essential Mathematics Year 8
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This video looks at the language which is needed to be able to describe data which has been gained from a survey. It describes terms such as population, sample, sample size, proportion and bias. It moves on to look at how we can describe the shape of the data using symmetrical and skewed and how to tell if the data is bi-modal. An example is used to describe how to read histograms to answer questions.

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Surveying and sampling good maths websites year 8 maths what is a survey what is a proportion finding a proportion bi-modal data symmetrical skewed positively skewed negatively skewed distribution negatively skewed histogram negatively skewed data meaning histogram sample size population statistics data representation