Scatter Plot

How it works

The correlation coefficient (r) is calculated using:

r = Σ((x - x̄)(y - ȳ)) / (n × σₓ × σᵧ)

Where:

• x̄ and ȳ are the means of x and y values
• σₓ and σᵧ are the standard deviations
• n is the number of data points

The regression line is calculated using:

• Slope (m) = r × (σᵧ/σₓ)
• Y-intercept (b) = ȳ - m × x̄