0
to help record your informantion
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Why are data tables used in controlled experiment?
To help organize data and record information... APEX :D
How are data tables and graphs used?
ok they are used by lines and dots and boxes to help you scientifically.
What can be used to show a cause and effect between two variables?
A controlled experiment can be used to show a cause and effect relationship. ex: an experiment studying the effect of a certain medicine on patients.
Is a data table the same as a database?
No. A table is the primary object used within a database to store data. A typical database will consist of many tables.
What is the meaning of normalized data in data warehouse?
Data warehouses are designed for quick access to large amounts of historical data. Read operations dominate over write operations. Under these conditions, normalization takes a back seat to performance optimization. A different design methodology, called dimensional design is used when planning a data warehouse. There are two common categories of schemas used in data warehousing: star schemas and snow flake schemas. A star schema has a central fact table, surrounded by dimension tables. The fact table contains columns called measures, which are aggregated in queries. The fact table is related to the dimension tables. The dimension tables may have levels, which are implemented as columns. For example, a dimension table named Location may contain columns for Continent, Country, StateProvince and City. This dimension table is not normalized. If you normalize the dimension tables, then each level is placed in its own table. Normalizing the dimension tables results in a snow flake schema.
Why are data tables used in controlled experiment?
To help organize data and record information... APEX :D
Why are tables used in a controlled experiment?
to help record your informantion
Why are data used in a controlled experiment?
to help record your informantion
Why are data tables used in an experiment?
They help to keep good records of measurements and observations.
Who decides how and when data in an organization will be used and or controlled?
who decides how and when data in an organization will be used or controlled
What is controlled in a controlled study?
An investigation in science that is controlled is an experiment. The group within the experiment that is controlled is the control group. A control experiment is designed to check or correct the results of a previous experiment. It does this by removing the variable or variables operating in the other experiment. The comparison obtained is an indication or measurement of the effect of the variables concerned
What are factors that are held constant throughout an experiment called?
Constants are factors in an experiment that stay the same. This should not be confused with controls -- which is a standard used for comparison
The basic procedure used in a controlled experiment before changing any variables?
the answer is experiment
What can an experiment be used for?
gathering data.
What are data tables used for in science?
Recording readings.
A data is used in which part of the experiment?
Science methods is part of the experiment. This is taught in science.
How do you relate tables?
You can relate the data present in multiple tables by using the concept of Foreign Keys. for example if we have an employee database that contains various details of an employee scattered in multiple tables, one column in each table can be used to logically group the data in all these tables. For example, the employee number column in each of these tables can be used to relate the data present in these tables.
