PAD Module 5 Data Analysis Quiz

What is the purpose of Descriptive Analysis in data analysis?

• To develop data visualization tools

• To create machine learning models

• To summarize data into specific groups or categories

• To predict future trends

What does Frequency Analysis aim to do?

• Develop data visualization tools

• Summarize data into specific groups or categories

• Create machine learning models

• Predict future trends

What does a Histogram illustrate in Frequency Analysis?

• Measures of Central Tendency

• Cumulative Frequency Distribution

• Frequency Distribution

• Measures of Dispersion

What does the Cumulative Frequency Distribution help to determine?

• The mode income of a job

• The mean income of a job

• The median income of a job

• The range of income for a job

What does the Median value divide a set of data into?

• 30% below the median value and 70% above the median value

• 25% below the median value and 75% above the median value

• 40% below the median value and 60% above the median value

• 50% below the median value and 50% above the median value

What does the Range measure in Measures of Variability?

• The scattering of data compared to its mean

• The symmetry of data distribution

• The density of data around its mean

• The difference between the largest and smallest data value

What does the Standard Deviation provide an overview of?

• The data density around its mean

• The position of mean, median, and mode

• The divergence from normality

• The range of overall data values

What is the Coefficient of Variation used for?

• To compare the range of two different data sets

• To compare the standard deviation of two different data sets

• To compare the mode of two different data sets

• To compare the mean of two different data sets

What does Skewness measure in Measures of Divergence from Normality?

• The weighted data density to the left relative to the mean

• The sharpness of the peaks of the distribution curve

• The weighted data density to the right relative to the mean

• The range of overall data values

What type of Divergence is often used to measure the sharpness of the peaks or corners of the distribution curve?

• Frequency Analysis

• Kurtosis

• Skewness

• Moment