Which of the Following Statements Is True About Data

OC A data mart is like a distributor in a supply chain while a data warehouse can be compared to a retail store. A It is always better to have data with too coarse a granularity than with too fine a granularity.

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Which of the following statements is TRUE about data marts.

. Which of the following statements is true of a data warehouse. -The mean is always a more accurate measure of center than the median. Check all that apply.

C Purchased operational data often contains missing elements. Which of the following statements are true. The data and the structure is.

Python is useful for AI machine learning web development and IoT. Which of the following statements is true about merging SAS data sets by using the DATA step. B If granularity is too coarse data can be made finer by summing and combining.

7 All of the following are true about using a pre-existing packaged data model except. B If the data granularity is too coarse the data can be made finer by summing and combining. Given 100 students let data set A be their IQ scores B be their ID numbers.

Python is the most popular language in data science. C The granularity of clickstream data is too coarse. SELECT employee_id last_name salary12 annsal.

The following statement will execute successfully true or false. All of the following statements about metadata are true EXCEPT A metadata gives context to reported data. Merging combines observations from two or more data sets into a.

D Data types inform the database on how much memory to. C it may be easier to share data with other organizations in the industry. 14 Which of the following statements is true of data with granularity.

If you can accomplish the same outcome with a join or a subquery which one should you always choose. The data and the structure is updated less than a OLTP database C. SQL for Data-science Coursera Assignment Answers Week 3 Quiz.

C The subsidiary ledgers play an important role in maintaining the accuracy of the data stored in the AIS. Subqueries always process the innermost query first and the work outward. B the modeling projects require less time and money.

A data connection to an Internet location is named. A Granularity refers to the level of detail represented by the data. Which of the following statements regarding master data are true select ALL that apply.

Ii Soccer team player numbers and mailing addresses are qualitative data. Is the following statement true or false. R integrates well with other computer languages like C Java.

Which of the following statements is true. True False. Then A and B are both.

A connection is an identifier for data that originated outside the workbook. Neither Chebyshevs Rule nor the Emprical Rule require any assumptions about the frequency distribution. Master data define the structure of an enterprise.

If you import data as a web query you can replace the data in your worksheet with current data on the web site. D Problematic operational data is termed rough data. OA Data marts address the needs of a particular department or functional area of a business.

-If a data sets distribution to skewed to the. ________ is the process of sorting grouping summing filtering and formatting structured data. The data is updated less than an OLTP database but the structure is updated more B.

2 Which of the following statements is true about a Data Warehouse. D Data marts are larger than data. C Data types are a classification of what kinds of values a field will hold.

A Information systems that produce real time data are less expensive than those that produce data at a later time. The data is updated more than an OLTP database but the structure is updated less D. A data warehouse is larger than a data mart.

B Data types inform the database on what kinds of actions can be performed on each field. C metadata helps to describe the meaning and structure of data. 80 of data scientists worldwide use Python.

Which of the following statements is true regarding subqueries. A it cannot be customized to fit the terms and business rules of a specific organization. -If a data sets distribution is skewed then 95 of its values will fall between two standard deviations of the mean.

Neither the Empirical Rule nor Chebyshevs Rule can be applied to data unless the frequency distribution is mound-shaped and. I Quantitative data specifies labels that could identify things for example soccer team player numbers mailing addresses etc. 29 Which of the following statements is true about data characteristics of quality information.

Which of the following statements about interpreting standard deviation is true. If you import data from a text file or a database you can refresh the data by importing it again. B there may be ethical issues involved in the creation of metadata.

A data warehouse is larger than a data mart. B Debits and credits in the subsidiary ledger must always equal. Top-n-analysis is used when you want to retrieve only the top number of records from a result set.

Master data is collected during the execution of a process such as dates and quantities Master data represent. B The timeliness of. Group of answer choices Master data contains information used to execute processes.

-The mean is affected by outliers. -Removing an outlier from a data set will cause the standard deviation to increase. A a All of the answer choices are correct.

A Every credit sale is entered individually into the subsidiary ledger. ORDER BY annsal. D The total of the subsidiary ledgers must equal the control account.

D for most organizations data warehouse metadata are an unnecessary expense. B Data marts contain only metadata for data warehouses. True False.

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