Draw a scatter diagram to represent the following values of X and Y variables. Comment on the type and degree of correlation.

$\begin{matrix} X & 15 & 20 & 25 & 27 & 30 Y & 7 & 10 & 12 & 16 & 18 \end{matrix}$

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Solution

Plot the values of variable X on the X-axis and variables Y on the Y-axis. A glance at the above scatter diagram shows that there is an upward trend of the dots from lower left-hand corner to the upper right-hand corner. It means, there is positive correlation between values of X and Y variables.

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Draw a scatter diagram to represent the following values of X and Y variables. Comment on the type and degree of correlation. X1520252730Y710121618

Plot the values of variable X on the X-axis and variables Y on the Y-axis. A glance at the above scatter diagram shows that there is an upward trend of the dots from lower left-hand corner to the upper right-hand corner. It means, there is positive correlation between values of X and Y variables.

Draw a scatter diagram to represent the following values of X and Y variables. Comment on the type and degree of correlation.

$\begin{matrix} X & 15 & 20 & 25 & 27 & 30 Y & 7 & 10 & 12 & 16 & 18 \end{matrix}$