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STA-301 GDB Idea Solution Spring 2012 Last date June 7, 2012

Graded Discussion Board (GDB) for STA301 will be opened on June 05, 2012 and will remain open till June 07, 2012. The topic of this GDB will be,

 

“Explain how measure of central tendency and measure of dispersion are complementary to each other to describe the data”

 

Your comments should NOT exceed from 200 words.

 

NOTE: Your comments MUST be posted with in due date and it will NEVER accept through e-mail.

 

Idea Solution

 

Central Tendency

 

An average value of any distribution of data that best represents the middle is called central tendency in other words we can say that central tendency of the data shows that where is the trend of the data.

 

Average enables us to measure the central tendency of variable data

 

Dispersion

 

Measures of dispersion enables us to measure its variability..

 

The distribution of values in relation to specific categories.  Measurements of dispersion include:

 

  • Standard Deviation
  • Ranges
  • Averages

 


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Replies to This Discussion

200 Words me answer dena hy so try to be logical.....The above are the concepts of dispersion and central tendency....take an idea from it and write your own.......BEST OF LUCK 

sir yea bata doe ke gdb mein definitions ur points nd examples dal sktee hein plz......................

but you dnt share the solution.the question regarding GDB is “Explain how measure of central tendency and measure of dispersion are complementary to each other to describe the data”.

so if you can discuss according to the question,then it would be really good.

for further explanation you can also add the types of both terms like types of averages A.M, G,M H,M and measures of dispersion types as well

thnxxxx alot dear

why thay complementary each other plz explain this point abdul rehman bahi

dear they complement each other because of their nature and their approach towards data.....Read carefully 

thnx g:)

Just take Hint! If you copy paste as it is you will surly get Zero marks.

Question: “Explain how measure of central tendency and measure of dispersion are complementary to each other to describe the data”

Solution 1 Hint 1:

Measure of central tendency and measure of dispersion are complementary to each other because they all deal with descriptive statistics. This can be data on the mean, median and mode which is mainly considered by the central tendency. On the other hand, dispersion deals with data about range, semi-interquartile range, variance, and standard deviation. Solution 2

Hint 2: Mean, median and mode These are all measures of central tendency. They help summarize a bunch of scores with a single number. Suppose you want to describe a bunch of data that you collected to a friend for a particular variable like height of students in your class. One way would be to read each height you recorded to your friend. Your friend would listen to all of the heights and then come to a conclusion about how tall students generally are in your class But this would take too much time. Especially if you are in a class of 200 or 300 students! Another way to communicate with your friend would be to use measures of central tendency like the mean, median and mode. They help you summarize bunches of numbers with one or just a few numbers. They make telling people about your data easy.

Range, variance and standard deviation
These are all measures of dispersion. These help you to know the spread of scores within a bunch of scores. Are the scores really close together or are they really far apart? For example, if you were describing the heights of students in your class to a friend, they might want to know how much the heights vary. Are all the men about 5 feet 11 inches within a few centimeters or so? Or is there a lot of variation where some men are 5 feet and others are 6 foot 5 inches? Measures of dispersion like the range, variance and standard deviation tell you about the spread of scores in a data set. Like central tendency, they help you summarize a bunch of numbers with one or just a few numbers.

Just take Hint! If you copy paste as it is you will surly get Zero marks.

well done keep it up 

sir plz explain how to comment discussion on gdb.what will be added.

plz sir tell me about how to construct introduction.

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