Step 1: Understanding ANOVA.
ANOVA stands for “Analysis of Variance.” It is a statistical method used to compare means of three or more groups to determine if there is a statistically significant difference between them. ANOVA is used to analyze the variation within a set of data and between different groups.
Step 2: Analyzing the options.
- (A) Correct, analysis of variance is the full form of ANOVA. It involves statistical techniques to test the differences between group means.
- (B) Incorrect, ANOVA is not related to the analysis of a single variable's average.
- (C) Incorrect, there is no statistical method called "another variable average."
- (D) Incorrect, ANOVA is a parametric test and is not considered non-parametric.
Step 3: Conclusion.
The correct answer is (A) analysis of variance.