needing definitions
1. Qualitative Variable
2. Quantitative variable
3. Trend Line of best fit
1. Qualitative Variable: A qualitative variable is a type of variable that describes qualities or characteristics that cannot be measured numerically. Examples of qualitative variables include gender, nationality, or hair color.
2. Quantitative Variable: A quantitative variable is a type of variable that can be measured numerically. It represents a quantity or amount. Examples of quantitative variables include age, height, or weight.
3. Trend Line of Best Fit: A trend line of best fit, also known as a regression line, is a straight line that represents the general trend or pattern in a scatter plot. It is used to summarize the relationship between two quantitative variables and can be used to make predictions or estimates. The trend line is determined using statistical methods and aims to minimize the distance between the line and the actual data points.