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Statistics
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∙ 12y ago
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A graph is best used to display data that shows a change over time?
A line graph.
Which graph is used to display categorical data?
A pie chart, bar graph, pictograph are some possibilities.
What is the difference between mesh analysis and nodal analysis?
In Mesh analysis you are using the values of the currents within a certain part of a circuit. In Node Analysis, you are observing the voltage at a certain point.
Difference between an entity class and an entity instance?
"An entity is a person, place, event, or thing about which data is collected...An instance is an occurence of an entity." - Systems Analysis & Design (4th) - DennisAn example of this would be STUDENT as the entity while JACK SMITH is an instance of that entity.If an entity is an individual "person, place, event, or thing about which data is collected", then an entity is an instance. Linguistically, entity is just another word for a single thing ("The existence of a thing as contrasted with its attributes.", Merriam-Webster's On-line Dictionary). Entities that have the same attributes are grouped in what are best called entity classes (it doesn't make sense to refer to a collection of entities as an entity). Entity and entity class are data modeling terms. The corresponding object modeling terms are object and class, albeit that a class typically has operations, which are foreign to an entity class.
What is an analogy for demonstrate and display?
pineapples
What is research onion?
its a method of data collection and data analysis
Steps in statistical investigation?
# Collection of Data # Processing # Presentation # Analysis of Data # Interpretation of Data
What are the essentials of the scientific method?
Observation Hypothesis Experiment Collection of Data Analysis of Data Sharing Data
What is the mathematical definition of data display?
A collection of facts, such as values or measurements.
Do data analysis help people in understanding the result of a survey conducted?
Data analysis must be used to understand the results of a survey. Otherwise, the data collected by the survey would remain a jumbled collection of data.
When is a problem researchable?
is a problem that can be investigated through the collection and analysis of data.
Which phase of the data collection and display process is considered the most important?
Analyzing
What are statistics in math?
"Statistics is the study of the collection, organization, analysis, and interpretation of data." (Wikipedia)
What science process is used when you tell the characteristics of an object.?
Observation, data collection and analysis.
What is a format of a lab write up?
question background hypothesis materials procedure data collection data analysis conclusion
What is the difference between interim analysis and preliminary analysis?
Preliminary analysis will determine from the start whether the concept is viable. Interim analysis allows for continual data collection to influence the termination of the project.
An automated system for the capture storage retrieval analysis and display of spatial data is known as?
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