The regression equation is y = 3.002 + 0.5x and the scatterplot is illustrated.
What is a scatterplot?
It should be noted that a scatterplot simply means a type of data that shows the relationship between two numerical variables.
From the information, summation is X is 99, summation Y is 82.5, summation XY is 797.47, and summation X² is 1001.
Now the value of a will be:
= 82.5 - 1001 - 99 - 797.47/(11.1001 - 99²)
= 3.002
b = (11 × 797.47 - 99 × 82.5)/11.1001 - 99²
= 0.5
The regression equation will be:
y = a + bx.
y = 3.002 + 0.5x
There's positive linear correlation between x and y.
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