Showing posts with label Histograms. Show all posts
Showing posts with label Histograms. Show all posts

Learning Articles with Histograms

Introduction to learning with histograms:

A graphical representation, in which learning the articles of histogram were identified as a bar graph for a particular measure of two frequencies and it has format of table that has shown in the bar graph and the graph represents the shapes that are given in the format. The height of a box and the measure is equal to the base side of the frequent data and the interval. A histogram is a graph demonstration of bar graph. Here shown about the types of distribution in the histogram.

learning part in articles with Histogram:

Horizontal X-Axis:

In the horizontal X-axis the bar chart gives the scale valve, which are the dimensions that fit into the data. These dimensions were normally well-known to the periods. Plot the horizontal X-axis points in the bar chart with respect to the values of Vertical Y-axis.

Vertical Y-Axis:

The straight bar or Vertical Y-axis in the bar chart gives the scale value, which shows you the several times the values within a period occurred. In several times it called as "frequency" in Y-axis.

Legend:

The legend provides extra information about the documents where the data came from and how the measurements were gathered.

Bars:

The bars consists of two main characteristics in the histogram, they are height and width. The height represents the several times the values within a period occurred. The width represents the length of the period covered by the bar. It is the same for all bars.

Title:

The title part in the histogram briefly explains the information about the things that are used in the bar chart.


learning Uses of articles with Histogram:

This histogram shows moreover a perfect distribution that covers about the graph, which displays all the brilliancy levels that contained in the scene found from the darkest to the brightest. The values are arranged with the values at the bottom of the graph from left to right. It gives an idea about the histogram and its use.

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Learning Conditions for the articles with Histogram:

The data’s can be marked clearly on the graph by measuring the data values accurately the scale and period.
The scale should contain all the data values. The period divides the scale into equal parts.
Learning Applications of articles with Histograms:

Clear review of total data sets that graphically shown in the bar chart.
Evaluate the measurements to the given specifications.
Share the information to the team.
Assist in administrative.

Graphs and Histograms

Graphs are pictorial representation of data.Histogram is graphical representation of data in statistics.

Introduction to graphs and histograms:

A histogram graph is representation of a frequency distribution as a graph . The graph  consists of rectangles constructed with class intervals as bases and heights proportional to corresponding frequencies such that there is no gap between any two successive rectangles.

A histogram deals with continuous type of data.

Different types of histograms are:

Histogram of continuous grouped frequency distribution with equal class intervals.

Histogram of a continuous grouped frequency distribution with unequal class intervals.

Histogram when mid-points are given

Histogram for grouped frequency with inclusive classes(discontinuous class-intervals)

Steps for Construction of Histogram:

Choose a suitable scale on the x-axis and represent the class-limits on it

Choose a suitable scale on the y-axis and represent the corresponding frequencies on it

Draw rectangles with class intervals as bases and the respective frequencies as heights

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Example Histogram with Equal Class Interval:

Ex : 1 Constuct a histogram to represent the following data:

Marks
Number of

students

0-10    4
10-20    7
20-30    12
30-40    20
40-50    9
50-60    2
Sol:

Choose a scale

Step 1:Along x-axis 1 cm = 10 marks

Step 2:Along y-axis 1 cm = 5 students

Step3:Starting from 0, mark 10,20,30,40,50,60,70 on x-axis and 4,7,12,20,9,2 on the y-axis

Step4:Then we draw the rectangles with class intervals as bases and corresponding frequencies as heights.

Steps to Draw Histogram of Unequal Class Interval:
Choose a suitable scale on the x-axis and represent the class-limits on it
Determine a class interval which has the minimum class size. Let the minimum class size be h
Find the adjusted frequency of each class by using the formula :
Adjusted frequency of the class = `h/("Class - size of the class)` x frequency of the class

Choose suitable scale on the y-axis and represent the corresponding adjusted frequencies on it
Draw the rectangles , the width of rectangles will be according to class limit