data analysis

Logistic regression

Regression is used to predict the value of the dependent (predicted) variable on the basis of the value of the independent variable or variables (predictors).

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Neural networks

Neural networks are a family of algorithms that are becoming increasingly popular for tasks in the areas of prediction, classification, and clustering.

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Factor analysis

The aim of factor analysis is to explain as much of the variation as possible with as few variables as possible.

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The power of a test

The power of a test is the probability of detecting a statistically significant effect when one actually occurs in the population under study.

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SKEWNESS AND KURTOSIS

Kurtosis and skewness are measures of asymmetry that describe such properties as the shape and asymmetry of the distribution under analysis. They provide us with information on...

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STUDENT T-TESTS

The Student's t-test group is used to compare two groups of results, measured by the arithmetic mean, against each other.

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Basic steps when design tables

Humans presented data in tabular format already in the ancient times. Thus, sometimes we can be deluded that structuring and reading tables is intuitive and does not require...

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