1. What is Data Science? Data Science is a combination of algorithms, tools, and machine learning technique which helps you to find common hidden patterns from the given raw data. 2. What is logistic regression in Data Science? Logistic Regression is also called as the logit model. It is a method to forecast the binary outcome from a linear combination of predictor variables. 3. Name three types of biases that can occur during sampling In the sampling process, there are three types of biases, which are: Selection bias Under coverage bias Survivorship bias 4. Discuss Decision Tree algorithm A decision tree is a popular supervised machine learning algorithm. It is mainly used for Regression and Classification. It allows breaks down a dataset into smaller subsets. The decision tree can able to handle both categorical and numerical data. 5. What is Prior probability and likelihood? Prior probability is the proportion of the dependent variable in the data set while the likelihood is the pro...