Question 1

What type of chart is most effective for showing the distribution of a dataset?

Accepted Answer

Histogram

Answer

Bar chart

Answer

Line chart

Answer

Pie chart

Question 2

Which of the following is NOT a characteristic of a good data visualization?

Accepted Answer

Confusing layout

Answer

Appropriate color usage

Answer

Effective use of space

Answer

Clear labeling

Question 3

What does the term 'data ink ratio' refer to in data visualization?

Accepted Answer

The proportion of ink used to represent data compared to the total ink used in the graphic

Answer

The amount of data in a visualization

Answer

The number of colors used

Answer

The size of the chart

Question 4

In a scatter plot, what does the correlation coefficient (r) indicate?

Accepted Answer

The strength and direction of the relationship between two variables

Answer

The variability of the data

Answer

The mean of the data

Answer

The number of data points

Question 5

Which type of visualization is best suited for comparing parts of a whole?

Accepted Answer

Pie chart

Answer

Histogram

Answer

Line graph

Answer

Scatter plot

Question 6

Which principle of data visualization emphasizes keeping visuals simple and uncluttered?

Accepted Answer

The principle of simplicity

Answer

The principle of colorfulness

Answer

The principle of redundancy

Answer

The principle of complexity

Question 7

What is the primary advantage of using a line graph over a bar chart?

Accepted Answer

It better illustrates trends over time

Answer

It shows individual data points more clearly

Answer

It is easier to read

Answer

It represents categorical data more effectively

Question 8

What does the term 'outlier' refer to in the context of data visualization?

Accepted Answer

A data point that significantly differs from the rest of the dataset

Answer

The average value of the dataset

Answer

A value that falls within the interquartile range

Answer

The most common data point

Question 9

What does a heat map represent in data visualization?

Accepted Answer

The intensity of data values using color gradients

Answer

The distribution of data across categories

Answer

The timeline of events

Answer

The relationship between two variables

Question 10

What is the primary purpose of using a box plot in data visualization?

Accepted Answer

To summarize the distribution of a dataset using five summary statistics

Answer

To show the frequency of data points

Answer

To display trends over time

Answer

To compare categories

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