Final answer:
Regression analysis is not a tool for descriptive statistics, it is used in inferential statistics to predict or determine relationships between variables. The correct option 1) histogram
Step-by-step explanation:
The question asks which of the following is not a tool for descriptive statistics:
- Histogram
- Regression analysis
- Frequency distribution
- Proportion
Descriptive statistics involve summarizing and organizing the data to describe its characteristics. Tools for descriptive statistics include graphs such as histograms and measures such as frequency distributions and proportions.
A histogram represents a frequency distribution for a continuous variable with bars, while frequency distribution is a summary of how often each different value occurs in a data set. Proportion is a measure that tells us what fraction of the total the data represent.
On the other hand, regression analysis is not considered a tool for descriptive statistics. Instead, it is a tool used in inferential statistics to make predictions or determine relationships between variables.
The correct option 1) histogram.