Graphing

Front

What is a bar graph and when is it used?

Back

A bar graph is a visual representation of data using bars of different heights or lengths to compare values across categories. It is used when comparing discrete categories.

Front

What is a pie chart and what type of data is it best suited for?

Back

A pie chart is a circular statistical graphic divided into slices to illustrate numerical proportions. It is best suited for displaying relative percentages of a whole.

Front

How do you determine the total number of items represented in a graph?

Back

To determine the total number of items represented in a graph, sum the values of all categories or segments shown in the graph.

Front

What does it mean to interpret data from a graph?

Back

Interpreting data from a graph means analyzing the visual representation to extract meaningful information, identify trends, and make conclusions based on the data presented.

Front

What is the importance of labeling axes in a graph?

Back

Labeling axes in a graph is important because it provides context for the data, indicating what each axis represents, which helps in understanding the information being conveyed.

Front

What is a histogram and how does it differ from a bar graph?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data. Unlike a bar graph, the bars in a histogram touch each other to indicate continuous data.

Front

What is the purpose of a line graph?

Back

The purpose of a line graph is to display data points over a continuous range, showing trends over time or relationships between variables.

Front

How can you find the mode from a set of data represented in a graph?

Back

The mode is the value that appears most frequently in a data set. In a graph, it can be identified by looking for the highest bar in a bar graph or the most common segment in a pie chart.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities and is non-numerical, while quantitative data represents numerical values and can be measured.

Front

How do you calculate the mean from a set of data?

Back

To calculate the mean, sum all the values in the data set and then divide by the number of values.