Weighted Average
Definition of Weighted Average
Weighted Average: Weighted average is a calculation that assigns a weight to each value in a set and then calculates the sum of those weights divided by the sum of the weights.
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Lift
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Definition of Lift Lift is a measure of how much a model predicts the value of a target variable relative to the prediction of the same target variable by a random guess. Lift is often used as a measure of how good a model is at discriminating between different groups. How is Lift used? Lift…
Feature Engineering
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Definition of Feature Engineering Feature Engineering: Feature engineering is the process of transforming raw data into a form that is more amenable to analysis or machine learning. This can involve things like aggregating data, transforming variables, or creating new features from existing variables. Feature engineering is an important part of data science, as it can…
Data Collection
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Definition of Data Collection Data Collection: Data collection is the process of gathering data, often from different sources, for analysis. This can be done through surveys, interviews, focus groups, or other methods. What is a Data Collection used for? A Data Collection is a collection of data that is used for the purpose of analysis…
Joint Probability
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Definition of Joint Probability Joint Probability: Joint probability is a measure of the likelihood that two or more events will occur simultaneously. It is calculated by multiplying the individual probabilities of each event. For example, if there is a 50% chance of rain on any given day and a 40% chance of a thunderstorm, the…