Question

Which of the following are described as valid methods for visualizing a numerical variable?

a) Bar chart and line plot
b) Pie chart and histogram
c) Scatter plot and box plot
d) Area chart and radar chart

Answer 1

The valid methods for visualizing a numerical variable are bar chart, line plot, scatter plot, and box plot.

Step-by-step explanation:

The valid methods for visualizing a numerical variable are:

1. Bar chart: A bar chart uses the height of bars to show a relationship. Each bar represents a certain entity, like a country or a group of people. Bar charts can compare size, quantity, rates, and distances.
2. Line plot: A line plot shows the relationship between two variables. One variable is shown on the horizontal axis and the other on the vertical axis.
3. Scatter plot: A scatter plot displays the relationship between two numerical variables. Each point on the plot represents a combination of values from both variables.
4. Box plot: A box plot displays the distribution of a numerical variable. It shows the minimum, the maximum, the median, and the quartiles of the data.