BDx Data Centers Machine Learning Intern Interview Questions and Answers

Linear Regression is a statistical method to model the relationship between a dependent variable and one or more independent variables.

• It is used to predict a continuous outcome variable based on one or more predictor variables.

• It assumes a linear relationship between the dependent and independent variables.

• It is commonly used in fields like finance, economics, and social sciences.

• It can be simple linear regression (on...read more

A confusion matrix is a table used to evaluate the performance of a classification model.

• It shows the number of true positives, false positives, true negatives, and false negatives.

• It helps in calculating various evaluation metrics like accuracy, precision, recall, and F1 score.

• It is useful in identifying the strengths and weaknesses of a model and improving its performance.

• Example: A confusion matrix for a binary clas...read more

Sampling is the process of selecting a subset of data from a larger population for analysis.

• Types of sampling include random sampling, stratified sampling, cluster sampling, and systematic sampling.

• Sampling is necessary when it is not feasible or practical to analyze the entire population.

• Sampling can help reduce costs and time required for analysis.

• Sampling can also help reduce bias in the analysis by ensuring that th...read more