Displaying Descriptive Statistics (A Class Session, February 9, 2026) скачать в хорошем качестве

Displaying Descriptive Statistics (A Class Session, February 9, 2026)

Displaying Descriptive Statistics Histogram, Frequency Polygon, and Ogive Histogram A histogram is a bar graph with no spaces between the columns. The heights of the bars corresponds to the frequency values. Frequency Polygon A frequency polygon is a graph that shows the frequencies of grouped data. It is a type of frequency diagram that plots the midpoints of the class intervals against the frequencies and then joins up the points with straight lines. Note: Histograms usually display continuous data, while frequency polygons can be used for continuous and discrete data. Ogive The Ogive is a graph of a cumulative distribution, which explains data values on the horizontal plane axis and either the cumulative relative frequencies, the cumulative frequencies or cumulative per cent frequencies on the vertical axis.