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Univariate, Bivariate & Multivariate Analysis Video Lecture | Mathematics for IIT JAM, GATE, CSIR NET, UGC NET
FAQs on Univariate, Bivariate & Multivariate Analysis Video Lecture - Mathematics for IIT JAM, GATE, CSIR NET, UGC NET
| 1. What is the difference between univariate, bivariate, and multivariate analysis? |  |
Ans. Univariate analysis involves the examination of a single variable, focusing on its distribution, central tendency, and dispersion. Bivariate analysis, on the other hand, examines the relationship between two variables, exploring how one variable affects or is related to another. Multivariate analysis goes a step further and considers the relationship between multiple variables simultaneously, allowing for a more comprehensive understanding of the data.
| 2. What are some examples of univariate analysis? | |
Ans. Some examples of univariate analysis include calculating the mean, median, and mode of a single variable, creating histograms or bar charts to visualize the distribution of a variable, and computing measures of variability such as the range or standard deviation.
| 3. How is bivariate analysis different from univariate analysis? | |
Ans. Bivariate analysis involves examining the relationship between two variables, whereas univariate analysis focuses on analyzing a single variable. In bivariate analysis, we explore how changes in one variable are associated with changes in another, using techniques such as correlation analysis or scatter plots.
| 4. What are the advantages of multivariate analysis? | |
Ans. Multivariate analysis allows us to understand the relationships between multiple variables simultaneously, providing a more comprehensive view of the data. It helps in identifying complex patterns, detecting hidden relationships, and making predictions or classifications based on multiple factors. Multivariate analysis also helps in reducing the risk of drawing incorrect conclusions by considering the joint effects of variables.
| 5. What are some common techniques used in multivariate analysis? | |
Ans. Some common techniques used in multivariate analysis include multiple regression analysis, principal component analysis (PCA), factor analysis, cluster analysis, and discriminant analysis. These techniques help in exploring the relationships, dependencies, and patterns among multiple variables in a dataset.
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