Histograms and Others

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

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 range of that bar.

Front

What is the purpose of a stem-and-leaf plot?

Back

A stem-and-leaf plot is used to display quantitative data in a way that retains the original data values while showing the distribution.

Front

What does the x-axis represent in a histogram?

Back

The x-axis represents the intervals (bins) of the data, showing the ranges of values.

Front

What does the y-axis represent in a histogram?

Back

The y-axis represents the frequency of data points that fall within each interval (bin).

Front

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

Back

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

Front

What is a circle graph (pie chart)?

Back

A circle graph, or pie chart, is a circular statistical graphic divided into slices to illustrate numerical proportions.

Front

How do you convert data from a histogram to a circle graph?

Back

To convert data from a histogram to a circle graph, calculate the percentage of the total for each interval and represent those percentages as slices of the pie.

Front

What is the relationship between histograms and frequency tables?

Back

Histograms visually represent the data in a frequency table, where the height of each bar corresponds to the frequency of each interval.

Front

What is the significance of the intervals (bins) in a histogram?

Back

Intervals (bins) group data points into ranges, allowing for easier visualization of the distribution of data.