Question

Options are ( pareto diagram, bar chart, pie chart, histogram, polygon, oglive)

Answer 1

• You will use pareto diagram when the categorical variable of interest contains many categories and one can use it to easily separate vital few from the trivial many.
• If a comparison of caegories is most important , use a bar chart
• If observing the portion of the whole that is in a particular category is most important, use Pie chart.
• Histogram should be used when describing numerical data that have been grouped into frequency, relative frequencyor percentage distributions.
• When plotting , polygon or ogive the variable interest is displayed along the horizontal axis and vertical axis represents number, portion , or percentage of observations per class interval.