what is a histogram, and how is i constructed?
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A histogram is a graphical representation of the distribution of data. The histogram is represented by a set of rectangles, adjacent to each other, where each bar represent a kind of data. To create a histogram, the data need to be grouped into class intervals. Then create a tally to show the frequency (or relative frequency) of the data into each interval. The relative frequency is the frequency in a particular class divided by the total number of observations.
A histogram is a graphical representation of the distribution of numerical data. It displays the frequency of data points within specified ranges (known as bins or class intervals) and provides a visual way to observe the shape and spread of the data.
How is it constructed:
1.
Collect Data
2.
Determine Class Intervals (Bins)
3.
Calculate the Range
4.
Determine Bin Width
5.
Create Class Intervals
6.
Count Frequencies
7.
Draw the Histogram