Graphs: Frequency & Pictograph

Front

What is a frequency graph?

Back

A frequency graph is a visual representation that shows how often each value occurs in a data set.

Front

What is a pictograph?

Back

A pictograph is a chart that uses pictures or symbols to represent data, where each picture represents a certain number of items.

Front

How do you calculate the difference in frequency between two categories?

Back

To calculate the difference in frequency between two categories, subtract the frequency of one category from the frequency of the other.

Front

What does it mean if a pictograph shows more symbols for one category than another?

Back

It indicates that more items belong to that category compared to the other category represented.

Front

How can you determine the total number of items represented in a pictograph?

Back

To determine the total number of items, count the number of symbols and multiply by the value each symbol represents.

Front

What is the importance of labeling axes in a frequency graph?

Back

Labeling axes in a frequency graph is important for clarity, as it helps viewers understand what data is being represented.

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How can you compare two different data sets using frequency graphs?

Back

You can compare two different data sets by analyzing the heights of the bars in a bar graph or the points in a line graph.

Front

What is the role of a key in a pictograph?

Back

The key in a pictograph explains what each symbol represents, providing context for interpreting the data.

Front

How do you interpret a frequency table?

Back

To interpret a frequency table, look at the counts for each category to understand how data is distributed across different values.

Front

What is the significance of the mode in a data set?

Back

The mode is the value that appears most frequently in a data set, indicating the most common item.