Podcast
Questions and Answers
What is the purpose of unstructured/textual data?
What is the purpose of unstructured/textual data?
- To be processed by computers
- To be stored in databases
- To be processed by humans (correct)
- To be visualized in graphs
Which type of data includes XML, HTML, and log files?
Which type of data includes XML, HTML, and log files?
- Structured data
- Unstructured/textual data
- Numeric data
- Semi-structured data (correct)
What is the singular form of the word 'data'?
What is the singular form of the word 'data'?
- Dataes
- Datas
- Data
- Datum (correct)
Which type of data is targeted for computers to process?
Which type of data is targeted for computers to process?
What is the purpose of structured data?
What is the purpose of structured data?
Which category of data includes facts and can be either numeric or nominal?
Which category of data includes facts and can be either numeric or nominal?
What is the arithmetic mean of the given data set: {21,23,23,26,26,27,29,30,32}?
What is the arithmetic mean of the given data set: {21,23,23,26,26,27,29,30,32}?
What is the measure of dispersion used to calculate how far each number in the set is from the mean?
What is the measure of dispersion used to calculate how far each number in the set is from the mean?
What does the standard deviation provide a measure of?
What does the standard deviation provide a measure of?
Which measure of centrality tendency is considered as the number in the middle of a data set when arranged in ascending order?
Which measure of centrality tendency is considered as the number in the middle of a data set when arranged in ascending order?
What is the measure of dispersion that calculates the difference between the maximum and minimum values in a data set?
What is the measure of dispersion that calculates the difference between the maximum and minimum values in a data set?
Which measure provides a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean?
Which measure provides a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean?
What does the Mean Absolute Deviation (MAD) calculate?
What does the Mean Absolute Deviation (MAD) calculate?
What type of plot is considered versatile and informative for visualizing quartiles and outliers?
What type of plot is considered versatile and informative for visualizing quartiles and outliers?
What type of chart is used to represent the frequency of values in a data set?
What type of chart is used to represent the frequency of values in a data set?
What does skewness measure in a probability distribution?
What does skewness measure in a probability distribution?
When calculating variance, what does (xi−x‾)2 represent?
When calculating variance, what does (xi−x‾)2 represent?
What is used to visualize how data is distributed across quartiles and identify outliers?
What is used to visualize how data is distributed across quartiles and identify outliers?
What type of data is targeted for humans to process/digest?
What type of data is targeted for humans to process/digest?
What is the measure of dispersion used to calculate how far each number in the set is from the mean?
What is the measure of dispersion used to calculate how far each number in the set is from the mean?
What does skewness measure in a probability distribution?
What does skewness measure in a probability distribution?
What does the standard deviation provide a measure of?
What does the standard deviation provide a measure of?
Which category of data includes facts and can be either numeric or nominal?
Which category of data includes facts and can be either numeric or nominal?
What type of plot is considered versatile and informative for visualizing quartiles and outliers?
What type of plot is considered versatile and informative for visualizing quartiles and outliers?
What is the purpose of descriptive statistics?
What is the purpose of descriptive statistics?
What does the range measure in a data set?
What does the range measure in a data set?
What does the variance measure in a data set?
What does the variance measure in a data set?
What does the standard deviation provide a measure of?
What does the standard deviation provide a measure of?
Which measure is considered as the number in the middle of a data set when arranged in ascending order?
Which measure is considered as the number in the middle of a data set when arranged in ascending order?
What type of chart is considered versatile and informative for visualizing quartiles and outliers?
What type of chart is considered versatile and informative for visualizing quartiles and outliers?
What does skewness measure in a probability distribution?
What does skewness measure in a probability distribution?
What is used to visualize how data is distributed across quartiles and identify outliers?
What is used to visualize how data is distributed across quartiles and identify outliers?
What type of chart represents the frequency of values in a data set?
What type of chart represents the frequency of values in a data set?
What is another name for the Mean Absolute Deviation (MAD)?
What is another name for the Mean Absolute Deviation (MAD)?
Flashcards
Unstructured Data Purpose
Unstructured Data Purpose
Processed by humans.
Semi-structured Data Example
Semi-structured Data Example
Includes XML, HTML, and log files.
Singular Form of Data
Singular Form of Data
Datum.
Structured Data for
Structured Data for
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Structured Data Content
Structured Data Content
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Arithmetic Mean of {21,23,23,26,26,27,29,30,32}
Arithmetic Mean of {21,23,23,26,26,27,29,30,32}
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Measure of Dispersion - Variance
Measure of Dispersion - Variance
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Standard Deviation Measures
Standard Deviation Measures
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Measure of Centrality - Median
Measure of Centrality - Median
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Measure of Dispersion - Range
Measure of Dispersion - Range
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Skewness Measures
Skewness Measures
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Mean Absolute Deviation (MAD)
Mean Absolute Deviation (MAD)
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Box-and-Whiskers Plot Use
Box-and-Whiskers Plot Use
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Histogram Use
Histogram Use
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Skewness in Probability
Skewness in Probability
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(xi−x‾)2 in Variance
(xi−x‾)2 in Variance
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Box-and-Whiskers Plot use
Box-and-Whiskers Plot use
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Descriptive Statistics Purpose
Descriptive Statistics Purpose
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Range measurement
Range measurement
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Variance measurement
Variance measurement
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Standard Deviation measurement
Standard Deviation measurement
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Median measurement
Median measurement
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Box plot alternative
Box plot alternative
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Skewness in a distribution
Skewness in a distribution
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Box-and-Whiskers Plot - Outlier Visualization
Box-and-Whiskers Plot - Outlier Visualization
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Histogram - Data visualization
Histogram - Data visualization
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Mean Absolute Deviation (MAD) alternative name
Mean Absolute Deviation (MAD) alternative name
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