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Which of the following data sampling methods involves dividing a population into subgroups by similar characteristics?
Which of the following data sampling methods involves dividing a population into subgroups by similar characteristics?A . SystematicB . Simple randomC . ConvenienceD . StratifiedView AnswerAnswer: D Explanation: Stratified sampling is a data sampling method that involves dividing a population into subgroups by similar characteristics, such as age, gender, income,...
Which of the following formats would be the MOST efficient way to deliver this report?
A data analyst is creating a report that will provide information about various regions, products, and time periods. Which of the following formats would be the MOST efficient way to deliver this report?A . A workbook with multiple tabs for each regionB . A daily email with snapshots of regional...
Which of the following data manipulation techniques would he use to obtain this information?
A data scientist wants to see which products make the most money and which products attract the most customer purchasing interest in their company. Which of the following data manipulation techniques would he use to obtain this information?A . Data appendB . Data blendingC . Normalize dataD . Data mergeView...
A table in a hospital database has a column for patient height in inches and a column for patient height in centimeters.
A table in a hospital database has a column for patient height in inches and a column for patient height in centimeters. This is an example of:A . dependent data.B . duplicate data.C . invalid dataD . redundant dataView AnswerAnswer: D Explanation: This is because redundant data is a type...
Which of the following methods would BEST address this issue?
While reviewing survey data, a research analyst notices data is missing from all the responses to a single question. Which of the following methods would BEST address this issue?A . Replace missing data.B . Remove duplicate data.C . Replace redundant data.D . Remove invalid data.View AnswerAnswer: A Explanation: This is...
If the report will be published on November 1, 2020, which of the following months shouts the report cover?
A data analyst has been asked to create a sales report that calculates the rolling 12-month average for sales. If the report will be published on November 1, 2020, which of the following months shouts the report cover?A . October 1, 2019 to October 31, 2020B . October 31, 2020...
Which of the following string manipulation commands will combine the address and region name columns to create a full address?
Consider the following dataset which contains information about houses that are for sale: Which of the following string manipulation commands will combine the address and region name columns to create a full address? full_address------------------------- 85 Turner St, Northern Metropolitan 25 Bloomburg St, Northern Metropolitan 5 Charles St, Northern Metropolitan 40...
Which of the following would BEST fulfill the analyst’s goal?
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 . MedianB . MeanC...
Which of the following components need to be added to ensure the report is point-in-time and static?
Refer to the exhibit. Given the following report: Which of the following components need to be added to ensure the report is point-in-time and static? (Choose two.)A . A control group for the phrasesB . A summary of the KPIsC . Filter buttons for the statusD . The date when...
Which of the following charts would be BEST to use?
An analyst needs to provide a chart to identify the composition between the categories of the survey response data set: Which of the following charts would be BEST to use?A . HistogramB . PieC . LineD . Scatter potE . WaterfallView AnswerAnswer: B Explanation: A pie chart is the best...
