Which of the following is the correct R syntax used for selecting certain rows from a data frame, based on specif‌ic logical criteria?

In survival analysis, which of the following methods is used to model the hazard function on a set of predictor variables?

Which of the following is a descriptive function involved in data mining?

Which of the following statements is NOT correct about data science?

In which of the following types of reasoning in data science, the conclusions reached are probable, reasonable. plausible and believable? Deductive reasoning Inductive reasoning

Suppose a user has typed the following command, where mdata is a variable to which the user's data is stored. head(mdata)

What is the rank of the matrix shown in the image?

In the given image, which matrix is in the row echelon form?

In advanced statistics, which of the following statements is correct about the Dirichlet Regression method?

Which of the following is the correct default value of the HOLDOUT_PERCENTAGE parameter of the Microsoft logistic regression algorithm, which is used for specifying the percentage of cases within the training data used to calculate a holdout error?

Which of the following text retrieval measures is the percentage of documents, which are relevant to the query and were actually retrieved?