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Consider this dataset showing the retirement age of 11 people, in whole years:
Consider this dataset showing the retirement age of 11 people, in whole years: 54, 54, 54, 55, 56, 57, 57, 58, 58, 60, 60 This tables show a simple frequency distribution of the retirement age data. A . 56B . 55C . 57D . 54View AnswerAnswer: D Explanation: A measure...
Which of the following is the mean height for the five dogs?
Five dogs have the following heights in millimeters: 300, 430, 170, 470, 600 Which of the following is the mean height for the five dogs?A . 394mmB . 405mmC . 493mmD . 504mmView AnswerAnswer: A Explanation: The mean height for the five dogs is calculated by adding up all the...
Which one of the following tools is least likely to meet her needs?
Amanda needs to create a dashboard that will draw information from many other data sources and present it to business leaders. Which one of the following tools is least likely to meet her needs?A . QuickSight.B . Tableau.C . Power BI.D . SPSS Modeler.View AnswerAnswer: D Explanation: SPSS Modeler. QuickSight,...
Which of the following data cleansing issues will be fixed when a DISTINCT function is applied?
Which of the following data cleansing issues will be fixed when a DISTINCT function is applied?A . Missing dataB . Duplicate dataC . Redundant dataD . Invalid dataView AnswerAnswer: B Explanation: This is because duplicate data refers to data that is repeated or copied in a data set, which can...
Which of the following data schemas shown?
Refer to the exhibit. Given the diagram below: Which of the following data schemas shown?A . Key-value pairsB . Online transactional processingC . Data LakeD . Relational databaseView AnswerAnswer: D Explanation: A relational database is a type of database that organizes data into tables, where each table has a fixed...
Which of the following are the most common issues?
The ACME Corporation hired an analyst to detect data quality issues in their Excel documents. Which of the following are the most common issues? (Select TWO)A . Apostrophe.B . Commas.C . Symbols.D . Duplicates.E . Misspellings.View AnswerAnswer: D, E Explanation:
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...
