What is Histogram? Explain with an example.
Answers
Answer:
A histogram is a chart that shows frequencies for. intervals of values of a metric variable. Such intervals as known as “bins” and they all have the same widths. The example above uses $25 as its bin width. So it shows how many people make between $800 and $825, $825 and $850 and so on.
Your Solution:
A histogram is a graphical representation of a grouped frequency distribution with continuous classes.
Histogram Example
Question: The following table gives the life times of 400 neon lamps. Draw the histogram for the below data. (Left picture is the table given in the question)
Answer: (Please see the right picture.)
It is an area diagram and can be defined as a set of rectangles with bases along with the intervals between class boundaries and with areas proportional to frequencies in the corresponding classes. In such representations, all the rectangles are adjacent since the base covers the intervals between class boundaries. The heights of rectangles are proportional to corresponding frequencies of similar classes and for different classes, the heights will be proportional to corresponding frequency densities.
In other words, histogram a diagram involving rectangles whose area is proportional to the frequency of a variable and width is equal to the class interval.
I hope you got it.
Keep Learning & Keep Growing
Happy Learning :)
