Statistics : Correlation and Regression Tutorials

Covariance between X and Y

Feb 20, 2024
STATISTICS

Covariance between X and Y Let $(x_i, y_i), i=1,2, \cdots , n$ be $n$ pairs of observations. Covariance measures the...

3 min Read

Karl Pearson Correlation Coefficient

Feb 20, 2024
STATISTICS

Karl Pearson’s Correlation Coefficient Let $(x_i, y_i), i=1,2, \cdots , n$ be $n$ pairs of observations then the Karl Pearson’s...

4 min Read

Simple linear regression from raw data

Feb 20, 2024
STATISTICS

Simple linear regression from raw data Let $(x_i, y_i), i=1,2, \cdots , n$ be $n$ pairs of observations. The simple...

3 min Read

Simple linear regression from sum and sumsquares

Feb 20, 2024
STATISTICS

Simple linear regression from sum and sum of squares Let $(x_i, y_i), i=1,2, \cdots , n$ be $n$ pairs of...

2 min Read

Simple linear regression from summarize data

Feb 20, 2024
STATISTICS

Simple linear regression from summarize data Let $(x_i, y_i), i=1,2, \cdots , n$ be $n$ pairs of observations. The simple...

2 min Read

Spearman Rank Correlation Coefficient

Feb 20, 2024
STATISTICS

Spearman’s Rank correlation Coefficient Let $(x_1, y_1), (x_2, y_2), \cdots , (x_n, y_n)$ be the ranks of $n$ individuals in...

2 min Read

Testing Correlation Coefficient

Feb 20, 2024
STATISTICS

Testing Correlation Coefficient Let $(x_i, y_i), i=1,2,\cdots, n$ be a random sample of $n$ pairs of observations drawn from a...

2 min Read

Testing Correlation Coefficient Examples

Feb 20, 2024
STATISTICS

Testing Significance of Linear Relationship A test of significance for a linear relationship between the variables $x$ and $y$ can...

7 min Read

Testing Correlation Coefficient Part 2

Feb 20, 2024
STATISTICS

Testing Correlation Coefficient Let $(X_i, Y_i), i=1,2,\cdots, n$ be a random sample of $n$ pairs of observations drawn from a...

2 min Read

Testing Correlation Coefficient Part 2 examples

Feb 20, 2024
STATISTICS

Testing Correlation Coefficient In this tutorial we will discuss step by step solution of numerical problems on testing whether the...

5 min Read

Testing homogeneity of Two Correlation Coefficient

Feb 20, 2024
STATISTICS

Testing Homogeneity of Two Correlation Coefficient We wish to test the null hypothesis that the correlation $\rho_1$ between $X$ and...

2 min Read

Testing homogeneity of Two Correlation Coefficient Examples

Feb 20, 2024
STATISTICS

Testing Homogeneity of Two Correlation Coefficient In this tutorial we will discuss step by step solution to some problems on...

4 min Read