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Sometimes when we graph the relationship between two varying quantities of real life on a coordinate plane we get dots scattered on coordinate plane.
For example graph average math score of students from grade 8.
Let's consider their 8-week score.
(1, 50) (2, 52), (3, 49), (4, 58), (5, 60), (6, 65), (7, 64), (8, 68).
If you plot these coordinates you will get the points scattered points.
1) It is helpful to study the relationship between two varying quantities.
2) It says whether the relation is positive or negative. Sometimes we may not have any relation.
3) Such relation is called as correlation.
4) In the above example the graph has positive correlation. As the week increases the average scores also increases. There may be some down fall. Overall, it is a positive variation.
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What is the diagram of the independent and dependent variable called?
scatter plot
A graphical presentation of the relationship between two quantitative variables is?
A scatter diagram.
What is the use of scatter graph?
A scatter diagram or scatter graph is used to plot two sets of data to see whether a connection or correlation can be established between them. It is a particularly useful form of graph to use when analysing social science data where you are trying to prove a hypothesis such as 'older people sustain more fractures' or 'the more hours homework a child does the better his/her SATs results will be'.
What is the chart called when the paired data the dependent and independent variables are plotted?
scatter diagram
When would you use a line chart or scatter chart?
The scatter diagram is used when the data is in a "Raw state" or what is referred to as "Raw Data". Example 10, 20,10,50,90,80,56,70,70,
