Question

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Answer 1

Answer:

Use the following steps to find the equation of line of best fit for a set of ordered pairs (x1,y1),(x2,y2),...(xn,yn) .

Step 1: Calculate the mean of the x -values and the mean of the y -values.

X¯¯¯=∑i=1nxinY¯¯¯=∑i=1nyin

Step 2: The following formula gives the slope of the line of best fit:

m=∑i=1n(xi−X¯¯¯)(yi−Y¯¯¯)∑i=1n(xi−X¯¯¯)2

Step 3: Compute the y -intercept of the line by using the formula:

b=Y¯¯¯−mX¯¯¯

Step 4: Use the slope m and the y -intercept b to form the equation of the line.

Step-by-step explanation:

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