1.What is/are the purpose(s) of a residual plot in regression analysis? For the residual plot drawn in part (d), explain what you learn in the context of this problem 2.What is the purpose of drawing a histogram of the residuals in regression analysis? For the histogram of residuals drawn in part (f), explain what you learn in the context of this problem.(histogram for residuals)
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
![Histogram
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Frequency](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5dd24e21-400d-471f-9414-9a497e698469%2Fce6ac0e6-f23d-41a6-b0e6-acca8d42a77b%2F42i22v_processed.png&w=3840&q=75)
![male mean vs female mean
700
y = 0.9632x + 8.5489
R? = 0.9799
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male mean
slope
intercept
0.9632
8.5489
female scc 552.7569
male mean Residual Plot
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male mean
female mean
Residuals
20](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5dd24e21-400d-471f-9414-9a497e698469%2Fce6ac0e6-f23d-41a6-b0e6-acca8d42a77b%2Fe07nhnf_processed.png&w=3840&q=75)
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