Data Visualization in research

What is the main purpose of visualizing data?

• To make complex data more accessible and understandable.

• To increase the amount of data presented.

• To create more complex data sets.

• To hide important information from users.

What does a bar graph represent?

• A bar graph shows trends over time.

• A bar graph represents numerical data only.

• A bar graph is used for displaying images.

• A bar graph represents data comparisons across different categories.

How do you interpret taller bars in a bar graph?

• Taller bars indicate higher values or frequencies in a bar graph.

• Taller bars indicate a decrease in frequency.

• Taller bars represent lower values in a bar graph.

• Taller bars show the average value of the data.

When would you use a bar graph?

• Bar graphs are used to illustrate complex relationships between variables.

• You would use a bar graph to show trends over time.

• You would use a bar graph when comparing different categories or groups of data.

• A bar graph is best for displaying continuous data.

What does a line graph typically show?

• The average of a single variable over time.

• The frequency of events in a specific category.

• The total sum of all data points at once.

• The relationship between two variables over time.

How can a line graph help in understanding trends?

• A line graph is primarily for comparing different groups at a single point in time.

• A line graph only shows the total values without any trends.

• A line graph helps in understanding trends by visually displaying data points over time, making it easy to identify patterns and changes.

• A line graph is used to display categorical data without time reference.

What is a pie chart compared to?

• A line graph

• A histogram

• A circle

• A bar graph

What does each slice of a pie chart represent?

• A proportion of the whole.

• A category of data.

• A single data point.

• A timeline of events.

When is it appropriate to use a pie chart?

• When showing proportions of a whole with limited categories.

• When illustrating a process flow or sequence.

• When comparing multiple datasets with many categories.

• When displaying time series data.

What type of data is best represented by a line graph?

• Continuous data or data showing trends over time.

• Categorical data

• Randomly generated data

• Data with fixed values