Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 Student 7 Student 8 Student 9 Height (inches) 63 67 68 68 69 70 71 74 75 Weight (lbs) 140 160 140 149 165 125 235 260 190 ∝=0.05 Find the correlation coefficient between height and weight. Construct the equation of the regression line. Predict the weight of a student who is 68 inches tall. 2. Write a well-developed paragraph or two about what you have learned from this process. When you read, see, or hear a statistic in the future, what skills will you apply to know whether or not you can trust the result?
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.
Hello, could you please help me solve these problems? And please explain everything that I should know?
|
|
Student 1 |
Student 2 |
Student 3 |
Student 4 |
Student 5 |
Student 6 |
Student 7 |
Student 8 |
Student 9 |
|
Height (inches) |
63 |
67 |
68 |
68 |
69 |
70 |
71 |
74 |
75 |
|
Weight (lbs) |
140 |
160 |
140 |
149 |
165 |
125 |
235 |
260 |
190 |
∝=0.05
- Find the
correlation coefficient between height and weight. - Construct the equation of the regression line.
- Predict the weight of a student who is 68 inches tall.
2. Write a well-developed paragraph or two about what you have learned from this process. When you read, see, or hear a statistic in the future, what skills will you apply to know whether or not you can trust the result?
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