Histogram

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data. Each bar shows the number of data points that fall within a specific range (interval).

Front

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

Back

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

Front

How do you determine the intervals in a histogram?

Back

Intervals in a histogram are determined by dividing the range of data into equal segments. Each segment represents a range of values.

Front

What is the purpose of a histogram?

Back

The purpose of a histogram is to visually display the distribution of data, making it easier to see patterns, trends, and outliers.

Front

How can you find the interval with the greatest frequency in a histogram?

Back

To find the interval with the greatest frequency, look for the tallest bar in the histogram. The height of that bar indicates the interval with the most data points.

Front

What is the total number of data points represented in a histogram?

Back

The total number of data points is the sum of the heights of all the bars in the histogram.

Front

If a histogram shows intervals of 0-4, 5-9, and 10-14, what does the interval 5-9 represent?

Back

The interval 5-9 represents all data points that have values between 5 and 9, inclusive.

Front

How do you read a histogram?

Back

To read a histogram, identify the intervals on the x-axis and the corresponding frequencies on the y-axis. Each bar's height shows how many data points fall within that interval.

Front

What is an example of data that can be represented in a histogram?

Back

An example of data that can be represented in a histogram is the ages of students in a class, grouped into intervals like 10-14, 15-19, etc.

Front

What is the difference between a histogram and a bar graph?

Back

A histogram is used for continuous data and shows frequency distributions, while a bar graph is used for categorical data and compares different categories.