Write a detailed note on the degree of correlation
Answers
Step-by-step explanation:
Limit: Coefficient values can range from +1 to -1, where +1 indicates a perfect positive relationship, -1 indicates a perfect negative relationship, and a 0 indicates no relationship exists..
Pure number: It is independent of the unit of measurement. For example, if one variable’s unit of measurement is in inches and the second variable is in quintals, even then, Pearson’s correlation coefficient value does not change.
Symmetric: Correlation of the coefficient between two variables is symmetric. This means between X and Y or Y and X, the coefficient value of will remain the same.
Degree of correlation:
Perfect: If the value is near ± 1, then it said to be a perfect correlation: as one variable increases, the other variable tends to also increase (if positive) or decrease (if negative).
High degree: If the coefficient value lies between ± 0.50 and ± 1, then it is said to be a strong correlation.
Moderate degree: If the value lies between ± 0.30 and ± 0.49, then it is said to be a medium correlation.
Low degree: When the value lies below + .29, then it is said to be a small correlation.
No correlation: When the value is zero.
Related Pages:
Conduct and Interpret a Bivariate (Pearson) Correlation
Correlation (Pearson, Kendall, Spearman)