line of best fit (LOBF)

• a straight line drawn through the middle of the points so the points are evenly scattered on either side of the line.
• needs to be a straight line
• needs to be close to as many points as possible
• has to go through the mean point
• the closer the points are to the LOBF, the stronger the correlation
• 𝑴𝒆𝒂𝒏 ���������� (𝒙̅, 𝒚̅) = (𝑴𝒆��𝒏 𝒐𝒇 �� 𝒗𝒂𝒍𝒖𝒆𝒔, 𝑴𝒆𝒂𝒏 𝒐𝒇 𝒚 𝒗𝒂𝒍𝒖𝒆𝒔)