a13 -2а a12 a11 a11 – 2a31 а12 — 2аз2 а13 a12 a13 C = -5a21 — 5а22 —5а2 B= a21 + 6a31 a22 + 6a32 a23 -- 6a33 Let A = a21 a22 a23 %3D a31 a32 a33 a32 a33 a31 a32 a33 a31 а32 a33 a11 a12 a13 a12 + 5a11 a13 a31 a21 a22 a23 F a23 ,G D a21 a22 -- 5a21 a23 a21 a22 a11 a12 a13 a32 + 5a31 a33 а11 а12 a13 a31 Given |A| = 8. Find the determinants of the following matrices. 1. |B| 2. |C| = %3D 3. |D| = 4. [F| | %3D 5. |G| = 6.|– 5A| = 7. |A-1| = 8. |A"| =
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.
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