PSBank Quiz

Which of the following best describes "Data" in the DIKW model?

• Applying knowledge for decision-making
• Raw facts and figures
• Insight gained from patterns
• Organized and meaningful context

What type of graph is best for displaying categorical data such as gender or preferred banking method?

• Bar Graph
• Scatterplot
• Histogram
• Line Graph

A ______________ is used to show the distribution of continuous ratio or numerical data and often represents frequencies using bins.

• Bar Graph
• Histogram
• Pie Chart
• Line Graph

Which of the following is an example of an Ordinal scale of measurement?

• Temperature in Celsius
• Student ID numbers
• Customer satisfaction levels (Poor, Average, Excellent)
• Age in years

If a dataset is "skewed to the left," which of the following is true?

• The distribution is perfectly symmetrical
• The majority of the values are high, with a long tail on the left
• The majority of the values are low, with a long tail on the right
• The mean is higher than the median

A correlation value of 0.75 between two variables means:

• A strong positive relationship
• No relationship
• A strong negative relationship
• A weak positive relationship

Which measure of central tendency is most frequently appearing value?

• Mean
• Mode
• Range
• Median

Which of the following data types is measured on a ratio scale?

• Bank account balance
• Temperature in Fahrenheit
• Clothing sizes (Small, Medium, Large)
• Customer satisfaction rating (1-5 stars)

What is the main difference between a Histogram and a Bar Graph?

• Both a and b
• Bar graphs have gaps between bars, while histograms do not
• Histograms are only used for nominal and ratio data
• Histograms are used for categorical data, while bar graphs are used for continuous data

A dataset is considered "skewed to the right" when:

• The median is higher than the mean
• The majority of values are low, with a long tail on the left
• The majority of values are high, with a long tail on the right
• The values are symmetrically distributed