Frequency, Percentage, and Proportion Statistical Based Graphical Displays.

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Presentation transcript:

Frequency, Percentage, and Proportion Statistical Based Graphical Displays

Dot Plots a plot that displays a dot for each value in a data set along a number line when multiple occurrences for a specific value occur, the dots will be stacked vertically. Day Defects Day Defects Day Defects

Dot Plots Ex: Dot Plot for frequency of manufacturing defects

Bar Charts AKA Bar Graph a graph that uses vertical or horizontal bars to represent frequencies of a category (qualitative data) in a data set Soft DrinkFrequency Pepsi-cola92 Coca-Cola78 Dr. Pepper48 7- Up42 Others40

Bar Chart Ex: Horizontal and Vertical Soft Drink Frequency Choice

Histogram a graphical display of frequency or relative frequency distributions that are grouped uses vertical bars at various heights to represent the frequency

Ex: Histogram with 8 weight classes with each class having a class interval (width) of 8. Histograms

Ex: Histogram with relative frequencies represented as percents. Histograms