Teaching DSSSB PGT Mock Test 2025 Research Aptitude Steps of Research Data Analysis

The formula for the slope of the regression line is:

1
b = Σ(xi - x̄)(yi - ȳ) / Σ(xi - x̄)^2
2
b = Σ(xi - x̄)^2 / Σ(xi - x̄)(yi - ȳ)
3
b = Σ(yi - ȳ) / Σ(xi - x̄)
4
b = Σ(xi - x̄) / Σ(yi - ȳ)
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