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Scatter Plots – Age and Reaction TimePowerPoint Presentation

Scatter Plots – Age and Reaction Time

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Scatter Plots – Age and Reaction Time

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Scatter Plots – Age and Reaction Time

By: Heather, Robyn & Ryan

http://www.youtube.com/watch?v=9Iw3a_LtJVE

- Declarative and procedural knowledge.
- Defining the Key terms.
- Why do we use scatter plots?
- Time for you to create a scatter plot.
- Using a scatter plot to make predictions.
- Quick quiz
- Mathematical worth of additional three digital resources.

- Scatter Diagram – A graph of plotted points that show the relationship between two sets of data.
- Correlation – When the two sets of data are linked together; Co (meaning ‘together’), and Relation.
- You will also see the words, Relationship and association.

- Positive Correlation – When the values increase together.
- Negative Correlation – When one values decrease and the other increases.
- No Correlation - Where a change in one set of data has no effect on the other set.

- Line of best fit – To find the direction of a correlation between two variables.
- Trend line - A line on a graph indicating a statistical trend

- Bivariate data - a set up of data made up of two variables.
- For example, comparing height to weight or age to reaction time.

- Does the increase in temperature impact sunscreen sales? What do you think this scatter plot would look like?

- If the price of bananas increase does this effect the amount of bananas sold? What would this scatter plot relationship look like?

- If we plotted how old you are, and the results you got for your maths test, what correlation is there?

Thank you