Answer:
Factor analysis
Explanation:
Factor Analysis
This is commonly known as decrease or lower the number of variables. It simply means to lower the number of columns in a data matrix. It usually combines related variables to common factors.
Example: can questions that are used to assess the brand qualities be clustered or grouped together to fewer rates or dimensions
The Concept of factor analysis includes:
1. It simply want to identify those factors that gives detail explanation on correlation among a set of variables.
2. To also identify a new, smaller set of uncorrelated variables to replace the original set of correlated variables in regression or discrimination.
3. To identify a smaller set of quiet variables from a bigger set for use in other multivariate analysis.
C would be the answer!
-Hope this helps!
