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Line of Best Fit Calculator

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Line of best fit is a straight line that best fit on a scatter plot that represents the relationship between the two sets of data. The line of best fit calculator plot the graphs by marking the two sets of points and draw a straight line that best fits in.
 

Steps

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Step 1 : Note the two sets of points from the question.

Step 2 : Mark all the points correctly in the xy graph and draw a straight line with the ruler to get the line of best fit.

Problems

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Below are some of the solved problems based on line of best fit.

Solved Examples

Question 1:
 x
  1
 2
 3
 4
 5
 6
 y
  7  10  12  15  19  21

Using the above data shown, draw the line of best fit for the given data.
Solution:
 
Given data :
x = 1, 2, 3, 4, 5, 6
y = 7, 10, 12, 15, 19, 21

Let's plot the points and draw the line of best fit.

Line of Best Fit Problem

 

Question 2:
Students
A
B
C
D
E
F
Chemistry scores
1
2
3
4
5
6
Physics scores
7 10 12 15 19 21

Using the above data shown, draw the line of best fit for the given data.
Solution:
 
Given data :
x = 62, 71, 69, 72, 45, 83
y = 60, 65, 65, 67, 39, 80

Let's plot the points and draw the line of best fit.
Line of Best Fit