Histograms

Front

What is a histogram?

Back

A histogram is a type of graph that represents the distribution of numerical data by using bars to show the frequency of data within certain intervals.

Front

How is a histogram different from a bar graph?

Back

A histogram displays numerical data and shows the frequency of data within intervals, while a bar graph displays categorical data.

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 number of data points that fall within the corresponding interval.

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

If a histogram shows an interval of 0-10 with a height of 15, what does this mean?

Back

This means that 15 data points fall within the range of 0 to 10.

Front

What is the purpose of using intervals in a histogram?

Back

Intervals help to organize and summarize large sets of numerical data, making it easier to visualize and analyze.

Front

How do you determine the mode from a histogram?

Back

The mode is the interval with the highest bar (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 side, with fewer high values.

Front

What does it mean if a histogram is symmetric?

Back

A symmetric histogram indicates that the data is evenly distributed around the center.

Front

What is the range of data in a histogram?

Back

The range is the difference between the highest and lowest values in the data set.