DWDM 2021 BATCH

What is a data object?

• A file containing data

• A specific instance of data

• A data structure

• A data type

Which of the following is a continuous attribute?

• Age

• Gender

• Country

• Hair color

What is a nominal attribute?

• An attribute that represents ordered categories

• An attribute with no inherent order or ranking

• An attribute with numerical values

• An attribute that represents counts

What type of attribute is represented by zip codes?

• Nominal attribute

• Ordinal attribute

• Continuous attribute

• Binary attribute

In a dataset, what does a binary attribute typically represent?

• Colors

• Yes or no, true or false, or on or off choices

• Countries

• Temperatures

Which measure of central tendency is affected by outliers?

• Mean

• Median

• Mode

• Range

What does the standard deviation measure?

• Central tendency

• Variability or spread

• Skewness

• Mode

Which measure of central tendency is most appropriate for skewed data?

• Mean

• Median

• Mode

• Range

What is the primary unit of display in pixel-oriented techniques?

• Lines

• Pixels

• Geometric shapes

• Icons

Which of the following is a limitation of pixel-oriented techniques?

• Scalability

• Realism

• Vector graphics

• Resolution independence