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What are the reasons for creating a data mart?
Data marts are created for various reasons. They're easy to access, easy to create, create collective views for groups, is not cluttered, and cost less to implement than a data warehouse.
What do outliers indicate?
In statistics, outliers are values outside the norm relative to the rest of collected data. Many times they can skew the results and distort the interpretation of data. They may or may not indicate anything significant; they might just be an anomalous data point that is not significant. It is difficult to tell.
What does a correlation near 1 or -1 indicate?
The closer the correlation is to 1 or -1, the more linear the data is
How does a z-score indicate how unusual a data value is?
It shows us by telling us how far away it is from the mean.
What is considered before using secondary data?
relevance, consistency, method of collection used, validity, reasons for which the data were collected, reliability, completenes e.t.c
How many fertility centers are there in California?
There are many fertility centers in California. An exact number can not be calculated as there is no data base of such information readily available to the public. However there are over fifty fertility centers in California.
What has the author Richard Ainley Easterlin written?
Richard Ainley Easterlin has written: 'An exploratory studyof the synthesis framework' of fertility determination with World Fertility Survey data' -- subject(s): Birth control, Family size, Fertility, Human, Human Fertility
List a few reasons that it might be impossible to recover some data?
Some of the reasons why it may become impossible to recover some data is if the data is corrupted or if there is malicious deleting. Read and write errors are common reasons why data can get corrupted.
May indicate percents of population?
Data Maps
What does dispersion indicate about the data?
correlation which can be strong or weak
How many data sets would you have?
You need to indicate the conditions.
What is a computer term field?
Field is used to indicate a location to hold a piece of data in a database, which is a collection of data.
Is staten island floating?
There is no scientific studies or data to indicate it is sinking.
What has the author Thomas W Pullum written?
Thomas W. Pullum has written: 'An assessment of the machine editing policies of the World Fertility Survey' -- subject(s): Data editing, Demographic surveys, World Fertility Survey 'Fertility preferences in Sri Lanka' -- subject(s): Family size, Fertility, Human, Human Fertility, Parental preferences for Sex of children, Sex of children, Parental preferences for
What is an empty space or interval in a set of data?
An empty space or interval in a set of data refers to a range of values within which no data points exist. This gap can indicate a lack of observations or a natural boundary in the data distribution. In graphical representations, such as histograms or scatter plots, these intervals may appear as blank regions where no data is plotted. Identifying empty spaces can be important for understanding the nature of the dataset and may prompt further investigation into potential reasons for the absence of data.
What is the purpose of a data dictionary in Oracle?
A data dictionary is a centralized repository of information about data,. The purpose of a data dictionary in oracle is to indicate a more general software utility than a catalogue.
What are the reasons for creating a data mart?
Data marts are created for various reasons. They're easy to access, easy to create, create collective views for groups, is not cluttered, and cost less to implement than a data warehouse.
