Data Mining Quizz

What is a dataset?

• A single data point

• A collection of data points

• A graphical representation of data

• A mathematical equation

Which of the following is not a type of attribute?

• Nominal

• Ordinal

• Interval

• Circular

Which attribute type represents categories with a meaningful order but no fixed intervals between them?

• Nominal

• Ordinal

• Interval

• Ratio

Which attribute type has a true zero point and equal intervals?

• Nominal

• Ordinal

• Interval

• Ratio

What type of dataset contains both numerical and categorical data?

• Homogeneous

• Heterogeneous

• Univariate

• Bivariate

What is the purpose of dispersion analysis?

• To find the central tendency of data

• To measure the spread of data points

• To count the number of data points

• To categorize data into groups

Which measure is used to assess the central tendency of a dataset?

• Mean

• Standard deviation

• Range

• Variance

What does a box plot visualize?

• Frequency distribution

• Central tendency

• Dispersion of data

• Relationship between two variables

What is represented by the box in a box plot?

• Minimum and maximum values

• Mean and standard deviation

• Interquartile range (IQR)

• Mode and range

Which plot compares the distribution of a dataset to a theoretical distribution?

• Histogram

• Box plot

• Q-Q Plot

• Scatter plot