CAP Data Visualization & Reporting

Question 1

Which chart type is most appropriate for displaying the distribution of a continuous variable?

Accepted Answer

Histogram

Answer

Pie chart

Answer

Stacked bar chart

Answer

Scatter plot

Question 2

When visualizing the relationship between two continuous variables, which chart type is most commonly used?

Accepted Answer

Scatter plot

Answer

Box plot

Answer

Treemap

Answer

Waterfall chart

Question 3

A CAP analyst wants to show how a total value breaks down into component parts over time. Which chart type is best suited?

Accepted Answer

Stacked area chart

Answer

Bubble chart

Answer

Gauge chart

Answer

Heat map

Question 4

According to data visualization best practices, what is 'data-ink ratio' as defined by Edward Tufte?

Accepted Answer

The proportion of a graphic's ink devoted to displaying data versus non-data elements

Answer

The ratio of colored ink to black ink in a chart

Answer

The number of data points per square inch of chart area

Answer

The ratio of axis labels to gridlines in a visualization

Question 5

Which visualization is most effective for comparing values across multiple categories simultaneously, particularly when the number of categories is large?

Accepted Answer

Horizontal bar chart

Answer

Donut chart

Answer

Radar/spider chart

Answer

3D pie chart

Question 6

In dashboard design, what does KPI stand for and what is its primary purpose?

Accepted Answer

Key Performance Indicator — monitors progress toward strategic goals

Answer

Key Process Indicator — tracks operational workflow steps

Answer

Known Predictive Index — measures model accuracy over time

Answer

Kernel Performance Index — benchmarks computing resource usage

Question 7

A box plot (box-and-whisker plot) displays which five summary statistics?

Accepted Answer

Minimum, Q1, median, Q3, maximum

Answer

Mean, median, mode, variance, range

Answer

Mean, standard deviation, skewness, kurtosis, range

Answer

Minimum, mean, median, mean, maximum