Make a scatter diagram with 10 dots showing a perfect positive linear correlation
Perfect positive linear? Wouldn't they all fall on the same straight line?
In a scatter diagram, a perfect positive linear relationship is shown by a diagonal straight line going from lower left to upper right. A perfect negative linear relationship is shown by a diagonal straight line going from upper left to lower right. Both vertical and horizontal straight lines indicate no relationship.
I hope this helps a little more. Thanks for asking.
To make a scatter diagram with perfect positive linear correlation, follow these steps:
1. Decide on the range of values for your x and y coordinates. Let's say the range is from 1 to 10.
2. Open a graphing tool or use a spreadsheet software like Microsoft Excel or Google Sheets.
3. Create a table with two columns: one for the x-coordinates and one for the y-coordinates. Label the columns as "x" and "y".
4. Enter the values for the x-coordinates from 1 to 10 in the "x" column.
5. For a perfect positive linear correlation, the y-coordinates should increase consistently with the x-coordinates. Enter the same values for the y-coordinates from 1 to 10 in the "y" column.
6. Select the data in both columns by highlighting the range.
7. In the graphing or spreadsheet tool, choose the "Scatter" or "XY Scatter" chart type.
8. The scatter diagram will be automatically generated, with the x-coordinates plotted on the horizontal axis (x-axis) and the y-coordinates plotted on the vertical axis (y-axis). The dots on the graph will be aligned in a perfectly straight line rising from left to right, showing a perfect positive linear correlation.
Note: In a perfect positive linear correlation, every dot lies exactly on the line. The correlation coefficient, denoted by "r," would be equal to +1. However, in real-world data, it's rare to find a perfect correlation, and there may be slight variations around the line.