Free Snowflake DSA-C02 Exam Dumps Questions & Answers

Which of the following cross validation versions may not be suitable for very large datasets with hundreds of thousands of samples?

• A.  All of the above
• B.  k-fold cross-validation
• C.  Leave-one-out cross-validation
• D.  Holdout method

Which ones are the key actions in the data collection phase of Machine learning included?

• A.  Label
• B.  Measure
• C.  Probability
• D.  Ingest and Aggregate

What is the formula for measuring skewness in a dataset?

• A.  (MEAN - MODE)/ STANDARD DEVIATION
• B.  MODE - MEDIAN
• C.  (3(MEAN - MEDIAN))/ STANDARD DEVIATION
• D.  MEAN - MEDIAN

Which of the following method is used for multiclass classification?

• A.  all vs one
• B.  one vs another
• C.  loocv
• D.  one vs rest

Which of the following is a common evaluation metric for binary classification?

• A.  F1 score
• B.  Accuracy
• C.  Mean squared error (MSE)
• D.  Area under the ROC curve (AUC)