Histograms

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data. It shows how many data points fall within specified ranges (intervals).

Front

What is an interval in a histogram?

Back

An interval in a histogram is a range of numbers that groups data points together. For example, an interval might be 0-10, 11-20, etc.

Front

How do you determine the height of a bar in a histogram?

Back

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

Front

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

Back

A histogram displays continuous data and groups it into intervals, while a bar graph displays categorical data with separate bars for each category.

Front

How can you find the total number of data points in a histogram?

Back

To find the total number of data points, add the heights of all the bars in the histogram.

Front

What does it mean if a histogram is skewed to the right?

Back

If a histogram is skewed to the right, it means that most data points are concentrated on the left side, with fewer data points on the right.

Front

What does it mean if a histogram is symmetric?

Back

A symmetric histogram has a balanced shape, meaning the data is evenly distributed around the center.

Front

How can you identify the mode from a histogram?

Back

The mode can be identified as the interval with the highest bar (tallest frequency) in the histogram.

Front

What is the purpose of using intervals in a histogram?

Back

Intervals are used in a histogram to group data points, making it easier to visualize and analyze the distribution of the data.

Front

How do you read the x-axis of a histogram?

Back

The x-axis of a histogram represents the intervals or ranges of data values.