Explanation of Datum, Data and Statistics in Mathematics

Understanding Datum, Data and Statistics - Term Datum in mathematics can be interpreted as a record that contains information or information obtained after doing a research. In mathematics the form of datum can vary. Can be shaped symbols, numbers, numbers, circumstances, even the nature of the object under study. A collection of datums is referred to as data. Still confused? Consider the following examples:

Mr. Darto wants to measure the data of the Datum, Data and Statistics in Mathematics. Weight of 4 students.After weighing, we found the result of weight of the students that is Dara with weight 55 kg, Ilham with weight 90 kg, Bejo with weight 60 kg, and Princess with weight 50 kg
Based on the above example, the student's weight (for example: 90 kg) is a datum. The overall measurement result of the 4 students is data. The number of datum of the above example is 4 (55, 90, 60, 50).


Explanation of Definition of Datum, Data and Statistics in Mathematics


Datum

Datum is divided into two forms, namely datum-shaped numbers and datum-shaped categories.

An example of a datum-shaped number is student weight, high student, student math score, mileage of a car,

While examples of datum-shaped categories relate to properties such as good and bad, high and low, etc.

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How to Solve Problems of SPLDV with Elimination Method [1945900] Resolving the SPLDV Problem with the Elimination Method - On the discussion of Formulas Basic Mathematics before we have learned together about how to solve SPLDV problem by substitution method . This time we will discuss other methods that can also be used to work on SPLDV problems called the Elimination method. What is meant by the elimination method is to eliminate or eliminate any of the variables and variables to be eliminated must have the same coefficients. If the coefficient of variables is not the same then you must multiply one equation with a certain constant so that there will be variables that have the same coefficients. To understand this method, let's just look at the example of the problem and the solution below: [1945907] Sample SPLDV Problem and Its Solution by Elimination Method [1945904] Example Problem 1: There are two equations, ie 2x + y = 8 and x - y = 10 with x, y R. Find the set of solutions of the system of equations by the method of elimination! Solution: From both equations, you can see the same coefficients possessed by variable y. Therefore, this y variable can we eliminate by summing. Thus the value of x can be determined in the following way: 2x + y = 8 x - y = 10 + 3x = 18 X = 6 2x + y = 8 | X 1 | 2x + y = 8 x - y = 10 | X 2 | 2x - 2y = 20 - 3y = -12 y = -4 Hence, the set The solution of the above equation system is (6, 4). [1945909] [1945909] Mixed Method In addition to using graphical methods, substitution methods, and methods of elimination, the system of equations Linear can also be solved by using a mixed method which is a combination of substitution methods with the method of elimination. The trick is to complete SPLDV with the method of elimination first and then proceed with substitution method. Consider the following example to understand how: Example Problem 2: Determine the set of settlements From the system of equations 2x + y = 5 and 3x - 2y = 11 where x, y R.