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sci.linear-regression Calculator
Calculates slope b, intercept a for linear regression applications. Designed for lab calculations and scientific modeling. Essential for lab calculations and scientific modeling in science.
Inputs
X1
Reference formula or conversion factor shown for context.
Y1
Reference formula or conversion factor shown for context.
X2
Reference formula or conversion factor shown for context.
Y2
Reference formula or conversion factor shown for context.
X3
Reference formula or conversion factor shown for context.
Y3
Reference formula or conversion factor shown for context.
X4
Reference formula or conversion factor shown for context.
Y4
Reference formula or conversion factor shown for context.
Results
slope b
The gradient -- rise divided by run. In finance, rate of change per unit time.
intercept a
The y-intercept of the fitted line -- the value when the independent variable is zero.
R² (coefficient of determination)
The value at the specified point or condition.
regression line: y =
The line of best fit through the data points. Used to predict output from input.
Pearson r
Sample size or count used in the calculation.
interpretation
Qualitative summary of what the computed numbers mean in practical terms.