Case
Case Data analysis for business
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- Institution
In this case I am talking about the correlation, regression and many other analysis methods.
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Some examples from this set of practice questions
1.
what is correlation?
Answer: Correlation, in the finance and investment industries, is a statistic that measures the degree to which two securities move in relation to each other. Correlations are used in advanced portfolio management, computed as the correlation coefficient, which has a value that must fall between -1.0 and +1.0.
2.
What is Regression linear?
Answer: Regression is a statistical method used in finance, investing, and other disciplines that attempts to determine the strength and character of the relationship between one dependent variable (usually denoted by Y) and a series of other variables (known as independent variables).
3.
What is data analysis?
Answer: Data analysis is a process of inspecting, cleansing, transforming and modelling data with the goal of discovering useful information, informing conclusion and supporting decision-making.
4.
Formula of Correlation
Answer: ρxy = Correlation between two variables Cov(rx, ry) = Covariance of return X and Covariance of return of Y σx = Standard deviation of X σy = Standard deviation of Y
5.
What is an Average?
Answer: A number expressing the central or typical value in a set of data, in particular the mode, median, or (most commonly) the mean, which is calculated by dividing the sum of the values in the set by their number
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