An analyst is creating a resource to improve users' experience when they select specific records based on particular dates. Which of the following should the analyst use to create a resource that best meets user needs?

A. Drop-down menu

B. Date range

C. Text field

D. Frequency

A quality assurance manager is examining tolerances in Internet of Things sensors. Which of the following is the best measure for the manager to calculate?

A. Standard deviation

B. Quartile range

C. Median

D. Mean

Joe. an analyst. tests the loading time on a dashboard he is preparing to go live and finds it is slower than he would like. Which of the following must occur to decrease the loading time?

A. Deploy the dashboard to production.

B. Change the field definitions.

C. Update the dashboard subscribers.

D. Optimize the dashboard.

Which of the following explains why standardization of data field names is important to master data management concepts?

A. The quality of the data is consistent and improved.

B. The data looks more appealing.

C. The colors in data visualization are enhanced.

D. The data is decompressed.

A sales analyst needs to report how the sales team is performing to target. Which of the following files will be important in determining 2019 performance attainment?

A. 2018 goal data

B. 2018 actual revenue

C. 2019 goal data

D. 2019 commission plan

Which of the following is the best description of discrete data types?

A. Non-numeric data used to describe attributes of a population sample

B. The frequency of the number of times each value occurs by using whole numbers

C. Numeric values that can be measured on a continuous scale

D. Non-numeric data used to describe attributes of a population sample ranked in a specific order

An analyst runs a report on a daily basis, and the number of datapoints must be validated before the data can be analyzed. The number of datapoints increases each day by approximately 20% of the total number from the day before. On a given day, the number of datapoints was 8,798. Which of the following should be the total number of datapoints on the next day?

A. 7,038

B. 9,600

C. 10,600

D. 10,800

A customer list from a financial services company is shown below:

A data analyst wants to create a likely-to-buy score on a scale from 0 to 100, based on an average of the three numerical variables: number of credit cards, age, and income. Which of the following should the analyst do to the variables to ensure they all have the same weight in the score calculation?

A. Recode the variables.

B. Calculate the percentiles of the variables.

C. Calculate the standard deviations of the variables.

D. Normalize the variables.

An analyst is working with the income data of suburban families in the United States. The data set has a lot of outliers, and the analyst needs to provide a measure that represents the typical income. Which of the following would BEST fulfill the analyst’s goal?

A. Median

B. Mean

C. Mode

D. Standard deviation

A data analyst needs to apply quality control concepts to a data set for accuracy. Which of the following is the best way to do this?

A. Standardization

B. Parameterization

C. Encryption

D. Cross-validation