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What is data analysis?
What is data analysis?
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.
Formula of Correlation
Formula of Correlation
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
what is Mean?
what is Mean?
To find the mean, add all the numbers together then divide by the number of numbers.
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