Frequency Tables and Histograms

Front

What is a frequency table?

Back

A frequency table is a way to organize data that shows how often each value occurs in a dataset.

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, where the data is divided into intervals (bins) and the frequency of data points in each interval is represented by bars.

Front

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

Back

To find the total number of items, sum the heights (frequencies) of all the bars in the histogram.

Front

What does the height of a bar in a histogram represent?

Back

The height of a bar in a histogram represents the frequency of data points that fall within the corresponding interval.

Front

How can you find the percentage of a specific category in a frequency table?

Back

To find the percentage, divide the frequency of the specific category by the total frequency and multiply by 100.

Front

What is the purpose of using a frequency table?

Back

A frequency table helps to summarize and organize data, making it easier to analyze and interpret.

Front

What is an interval in a histogram?

Back

An interval in a histogram is a range of values that groups data points together for analysis.

Front

How do you read a histogram?

Back

To read a histogram, look at the intervals on the x-axis and the corresponding frequencies on the y-axis to understand the distribution of data.

Front

What is the difference between a frequency table and a histogram?

Back

A frequency table lists the frequencies of each category, while a histogram visually represents the frequencies using bars.

Front

How can you identify the mode from a histogram?

Back

The mode is the interval with the highest bar (frequency) in the histogram.