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Which of the following should be accomplished NEXT after understanding a business requirement for a data analysis report?
Which of the following should be accomplished NEXT after understanding a business requirement for a data analysis report?A . Rephrase the business requirement.B . Determine the data necessary for the analysis.C . Build a mock dashboard/presentation layout.D . Perform exploratory data analysis.View AnswerAnswer: B Explanation: Exploratory data analysis (EDA) is...
Which of the following value is the measure of dispersion "range" between the scores of ten students in a test.
Which of the following value is the measure of dispersion "range" between the scores of ten students in a test. The scores of ten students in a test are 17, 23, 30, 36, 45, 51, 58, 66, 72, 77.A . 90B . 60C . 70D . 80View AnswerAnswer: B Explanation:...
Which of the following is the MOST likely cause of the issue?
A recurring event is being stored in two databases that are housed in different geographical locations. A data analyst notices the event is being logged three hours earlier in one database than in the other database. Which of the following is the MOST likely cause of the issue?A . The...
Which of the following variable types BEST describes the “Year” column?
Refer to the exhibit. Given the table below: Which of the following variable types BEST describes the “Year” column?A . NumericB . DateC . AlphanumericD . TextView AnswerAnswer: B Explanation: This is because date is a type of variable that represents a specific point or period in time, such as...
What command should he use?
Daniel is using the structured Query language to work with data stored in relational database. He would like to add several new rows to a database table. What command should he use?A . SELECT.B . ALTER.C . INSERT.D . UPDATE.View AnswerAnswer: C Explanation: INSERT The INSERT command is used to...
A database consists of one fact table that is composed of multiple dimensions. Depending on the dimension, each one can be represented by a denormalized table or multiple normalized tables.
A database consists of one fact table that is composed of multiple dimensions. Depending on the dimension, each one can be represented by a denormalized table or multiple normalized tables. This structure is an example of a:A . transactional schema.B . star schema.C . non-relational schema.D . snowflake schema.View AnswerAnswer:...
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 is the NEXT step the analyst should take in the dashboard creation process?
An analyst has received the requirements for an internal user dashboard. The analyst confirms the data sources and then creates a wireframe. Which of the following is the NEXT step the analyst should take in the dashboard creation process?A . Optimize the dashboard.B . Create subscriptions.C . Get stakeholder approval.D...
Which of the following descriptive statistical methods are measures of central tendency? (Choose two.)
Which of the following descriptive statistical methods are measures of central tendency? (Choose two.)A . MeanB . MinimumC . ModeD . VarianceE . CorrelationF . MaximumView AnswerAnswer: A, C Explanation: Mean and mode are measures of central tendency, which describe the typical or most common value in a distribution of...
Which of the following are the BEST reasons to validate data for quality control purposes?
An analyst has been asked to validate data quality. Which of the following are the BEST reasons to validate data for quality control purposes? (Choose two.)A . RetentionB . IntegrityC . TransmissionD . ConsistencyE . EncryptionF . DeletionView AnswerAnswer: B, Explanation: Integrity and D. Consistency. This is because integrity and...
