Friday

November 28, 2014

November 28, 2014

Posted by **Anna** on Thursday, September 28, 2006 at 11:13pm.

Why is it important to measure variability in a data set?

I don't understand my homework,is about round numbers,prime factorizations,and large problems and is to harder to me.

Then post your question's and we'll try to help you understand it.

Well, consider these 2 sets

S=(5,5,5,5)

T=(14,1,2,3)

They both have the same average, 5, but look how much the members of T vary from each other compared with those of S. Just looking at the average is not useful without knowing how much variance there is in a set of data.

Does this help to explain the importance of knowing about variability in data sets?

**Answer this Question**

**Related Questions**

Math - Stephen said that the ratio of his mortgage to the sales price of his ...

math - Blockbust video collected data to figure out how many movies they were ...

Math - Use the data set {-100, -99, -98, ........-2, -1} to answer the ...

MATH - Write a mathematical sentence to compare each pair of measures. GB and GF...

Another Math Statistical Question - Assume Coca Bottling is a company producing ...

math - Okay. so say their is a list of numbers: x y 0 3 1 5 2 7 3 9 4 11 I know ...

Statistics - I have provided information from #3-5 in order to answer #6.. 3. ...

statistics - 14.how would you describe this set of data? In other words, how ...

statistics - basically i'm at the begining of the text book doing summer work it...

Statistics - I need help with this problem. I think I have some of the answers ...