Statistics - Sample size (N)

Statistics - Multiple Linear Regression

Statistics - Multiple Linear Regression About Multiple regression is a regression with multiple predictors. It extends the simple model. You can have many predictor as you want. The power of multipl "...

Machine Learning - K-Nearest Neighbors (KNN) algorithm - Instance based learning

Machine Learning - K-Nearest Neighbors (KNN) algorithm - Instance based learning About “Nearest‐neighbor” learning is also known as “Instance‐based” learning. K-Nearest Neighbors, or K "...

Statistics - Confidence Interval

Statistics - Confidence Interval About The definition of a confidence interval says that under repeated experiments 95% of the time this confidence interval will contain the true statistic (mean, .. "...

Statistics - (Data Set|Sample)

Statistics - (Data Set|Sample) About Because of the difficulties of obtaining information about all units in a population, it is common to use a small, random and representative subset of the popul "...

Distribution - (Mean|Average) (M| | )

Distribution - (Mean|Average) (M| | ) About The average is a measure of center that statisticians call the mean. To calculate the mean, you add all numbers and divide the total by the number of nu "...

Statistics Learning - Prediction Error (Training versus Test)

Statistics Learning - Prediction Error (Training versus Test) About The Prediction Error tries to represent the noise through the concept of training error versus test error. We fit our model to th "...

Statistics - (Data|Data Set) (Summary|Description) - Descriptive Statistics

Statistics - (Data|Data Set) (Summary|Description) - Descriptive Statistics About Summary are a single value summarizing a array of data. They are: * selected * or calculated through reductio "...

Statistics - (Student's) t-test (Mean Comparison)

Statistics - (Student's) t-test (Mean Comparison) About The t-test is a test that compares means. * NHST can be conducted yielding to a p-value * Effect Size can be calculated like in multiple "...

Statistics - t-distributions

Statistics - t-distributions About The t-distributions are used to calculate the p-value (basically you look it up in a table, nowadays software will compute it). It's basically a normal random var "...

Statistics - (t-value|t-statistic)

Statistics - (t-value|t-statistic) About The (t-value|t-statistic) is a test statistic. In NHST, it is essentially a ratio of what we observed relative to what we would expect just due to chance. "...