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Which of the following describes the method of sampling in which elements of data are selected randomly from each of the small subgroups within a population?
Which of the following describes the method of sampling in which elements of data are selected randomly from each of the small subgroups within a population?A . Simple randomB . ClusterC . SystematicD . StratifiedView AnswerAnswer: D Explanation: This is because stratified is a type of sampling in which elements...
Which of the following date parameters should the analyst use?
Q3 2020 has just ended, and now a data analyst needs to create an ad-hoc sales report that demonstrates how well the Q3 2020 promotion went versus last year's Q3 promotion. Which of the following date parameters should the analyst use?A . 2019 vs. YTD 2020B . Q3 2019 vs....
Which of the following is the mean?
Refer to the exhibit. A data analyst needs to calculate the mean for Q1 sales using the data set below: Which of the following is the mean?A . $2,466.18B . $2,667.60C . $3,082.72D . $12,330.88View AnswerAnswer: C Explanation: The mean is the average of all the values in a data...
Which of the following should be included in the report?
A data analyst has been asked to create an ad-hoc sales report for the Chief Executive Officer (CEO). Which of the following should be included in the report?A . The sales representatives' home addresses.B . Line-item SKU numbers.C . YTD total sales.D . The customers' first and last names.View AnswerAnswer:...
Which of the following BEST describes the issue in which character values are mixed with integer values in a data set column?
Which of the following BEST describes the issue in which character values are mixed with integer values in a data set column?A . Duplicate dataB . Missing dataC . Data outliersD . Invalid data typeView AnswerAnswer: D Explanation: The invalid data type is the best description for the issue in...
Which of the following describes the number of rows of data that can be expected after performing both joins in the order stated, considering the customer table as the main table?
A data analyst has been asked to merge the tables below, first performing an INNER JOIN and then a LEFT JOIN: Customer Table - In-store Transactions C Which of the following describes the number of rows of data that can be expected after performing both joins in the order stated,...
Which of the following issues will MOST likely arise with this data?
Different people manually type a series of handwritten surveys into an online database. Which of the following issues will MOST likely arise with this data? (Choose two.)A . Data accuracyB . Data constraintsC . Data attribute limitationsD . Data biasE . Data consistencyF . Data manipulationView AnswerAnswer: A, E Explanation:...
Which of the following is a common data analytics tool that is also used as an interpreted, high-level, general-purpose programming language?
Which of the following is a common data analytics tool that is also used as an interpreted, high-level, general-purpose programming language?A . SASB . Microsoft Power BIC . IBM SPSSD . PythonView AnswerAnswer: D Explanation: Python is a common data analytics tool that is also used as an interpreted, high-level,...
Which of the following will MOST likely be streamed live?
Which of the following will MOST likely be streamed live?A . Machine dataB . Key-value pairsC . Delimited rowsD . Flat filesView AnswerAnswer: A Explanation: Machine data is the most likely type of data to be streamed live, as it refers to data generated by machines or devices, such as...
Which of the following actions should be taken when transmitting data to mitigate the chance of a data leak occurring? (Choose two.)
Which of the following actions should be taken when transmitting data to mitigate the chance of a data leak occurring? (Choose two.)A . Data identificationB . Data processingC . Data ReportingD . Data encryptionE . Data maskingF . Fata removalView AnswerAnswer: DE Explanation: Data encryption and data masking are two...
