Presentation of Data Using Tables
Presentation of Data Using Tables - Inside The material on statistical data is not sufficiently collected but must be presented in a form that is more interesting and easy to be understood by the person who will use the data. Presentation of data can be done by using various media, one of them is by using table. Therefore, in this discussion The Basic Mathematical Formula will invite you to jointly study the ways or steps of data presentation using tables.
[1945907] Single Table Data Frequency The presentation of a single data by using an ordinary table is called a single data frequency distribution term. In order to make it easier for you to understand it, consider the following example:
In the population census held in a village, the number of children owned by each family as follows :
1 4 3 4 5 4 3 6 1 2
2 3 2 4 1 6 5 3 4 3
4 4 5 4 4 4 6 5 4 4
2 4 3 3 2 4 2 3 4 1
The data is still random and has not been neatly arranged and Regularly so it will be difficult to know the information contained in the data. Therefore, to facilitate us in reading the information contained in the data we must present it in the form of a single data frequency table.
In a single data frequency table each row and column contains only one value or data. Usually the table is divided into 3 columns. The first column is on the side of the data. The second column is turus (chopping the data using the symbol | for each data corresponding to the data obtained). While the last column or the third is a frequency that contains the number of turus contained in certain data. The following table is obtained based on the above data:
Table Frequency of Grouped Data
Next we will learn how to create a table with a data group system.Association of data grouped into table form is called the frequency distribution of group data. Note the following examples:
The result of the repetition value of the seventh grade students of SMP Tunas Mekar class is as follows:
44 54 85 92 73 99 91 96 74
75 70 57 83 49 57 52 64 73
82 90 70 89 91 67 52 64 73
82 59 65 79 82 89 53 52 50
From the above data we can see that the highest and lowest values have the difference / distance called range (range). Reach large enough that 99 - 44 = 55. If the data we present into the form of a single data table of the resulting table is not practical and still difficult to understand. So we need to classify the data, especially if it is newly inserted into the frequency table of group data.
In a frequency table of grouped data, each row and column contains some data / values. Here are the terms that are often used when presenting data in a clustered table:
Interval Class:
Grouping Of some data or value.
Many Classes Interval:
The large number of groupings of the entire data available.
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Length of Interval:
The amount of data within a class of intervals. The length of the interval within a table must be the same.
By using these terms, the above data can be presented in table form as follows:
The table above has many interval classes = 7 and interval class length = 8
Thus the explanation of the ordinance Presentation of Data Using Tables for further material will be explained on how to present data using media Which is lan like drawing and diagram So, keep in mind the material being read Rikan by this blog not to be missed. See you soon [1945909] Share to Facebook Google+ Twitter
