Histograms

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points within specified ranges (bins).

Front

What is an interval in the context of histograms?

Back

An interval is a range of numbers that groups data points together in a histogram.

Front

What is the purpose of using intervals in a histogram?

Back

Intervals help to organize data into manageable groups, making it easier to visualize and analyze the distribution.

Front

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

Back

The height of a bar represents the frequency (number of occurrences) of data points within that interval.

Front

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

Back

You sum the heights of all the bars in the histogram.

Front

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

Back

A histogram displays continuous data using intervals, while a bar graph displays categorical data with distinct categories.

Front

What is the x-axis in a histogram used for?

Back

The x-axis represents the intervals (bins) of data.

Front

What is the y-axis in a histogram used for?

Back

The y-axis represents the frequency of data points within each interval.

Front

How can you identify the mode of a data set using a histogram?

Back

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

Front

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

Back

A right-skewed histogram indicates that most data points are concentrated on the left, with a few larger values extending to the right.