In this section we are going to discuss the topic Central tendency and how to calculate measures of central tendency. Central tendency for grade XI of Andhra Pradesh board textbooks means calculation of the average data or number among the data set or large amount of data. Measuring central tendency is a process which has basically three types as Mean, Median and Mode. You can improve your math skills by playing measures of central tendency worksheets
First we discuss about the Mode that is the value that occurs many times in a data set. It can also have the frequency of the repeated numbers as an example a group of data set have the ten numbers as 92 , 100 , 103 , 98 , 100 , 95 , 100 , 99 ,100 ,92 then 100 is the number which occurs 4 times in the data set so 100 is the mode of this data set .
Another measure of central tendency is median that is defined as the value which is occurs in the middle of ordered data set. We also describe it by an example as 32 , 78 , 45 , 36 , 90 , 89 , 35 , 56 then when we arrange it in order as 32 , 35 , 36 ,44 , 56 , 78 , 89 , 90 then 45 and 56 is the middle values of ordered data set then the median of it is ( 44 + 56 ) / 2 = 100 / 2 = 50 .
There is another way of measuring central tendency (for more visit here) known as mean that is normally an arithmetic mean which is equal to the sum of the value s of data set which is divided by total number of values. It is often known as average. We can also understand it by an example as a data set of values as 4 , 6 , 8 , 3 , 5, 10have the mean value ( 4 + 6 + 8 + 3 + 5+ 10)/6= 36 / 6 =6 where total number of values are 6 and their total is 36 and when divide 36 by 6 then coming value is known as mean.
In upcoming posts we will discuss about Methods of data representation and Triangle congruence relationships. Visit our website for information on Z score Table
First we discuss about the Mode that is the value that occurs many times in a data set. It can also have the frequency of the repeated numbers as an example a group of data set have the ten numbers as 92 , 100 , 103 , 98 , 100 , 95 , 100 , 99 ,100 ,92 then 100 is the number which occurs 4 times in the data set so 100 is the mode of this data set .
Another measure of central tendency is median that is defined as the value which is occurs in the middle of ordered data set. We also describe it by an example as 32 , 78 , 45 , 36 , 90 , 89 , 35 , 56 then when we arrange it in order as 32 , 35 , 36 ,44 , 56 , 78 , 89 , 90 then 45 and 56 is the middle values of ordered data set then the median of it is ( 44 + 56 ) / 2 = 100 / 2 = 50 .
There is another way of measuring central tendency (for more visit here) known as mean that is normally an arithmetic mean which is equal to the sum of the value s of data set which is divided by total number of values. It is often known as average. We can also understand it by an example as a data set of values as 4 , 6 , 8 , 3 , 5, 10have the mean value ( 4 + 6 + 8 + 3 + 5+ 10)/6= 36 / 6 =6 where total number of values are 6 and their total is 36 and when divide 36 by 6 then coming value is known as mean.
In upcoming posts we will discuss about Methods of data representation and Triangle congruence relationships. Visit our website for information on Z score Table
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