hi.. today em.. a bit quite free la so post this.. haha.. as wad i had mention b4.. em ytd de post.. we learnt a new chap for maths.. and ms chua gave us 1 ws for each pair.. but den she today give us the same ws again for the other person of the pair den ask us to copy down the ans.. wth.. should gave us earlier ma.. ok nvm.. just to save shanxuan's trouble in writing down more again.. i chose to be the 1 that take the new ws den copy everything by myself.. sianz-.-
and so this is the ans for the 1st que done by both of us.. LOOOONNGGG!! ok haha..
What are the data telling?
1) data helps us to compare the differences and similarities of two or more variables.
2) we can find out the data we want more efficiently.
3) dot diagrams, stem-and-leaf diagrams, bar charts, pie charts, pictograms, line graphs and histograms.
4) yes.
mode of a data set is the value that occurs most often. it is easy to find and understand but it does not take into consideration the bulkof the data. it is not affected by the extreme values. two modes cannot be combined to give an overall mode.
median calculation involves just one or two middle values and does not take into consideration the rest of the data. it is not really affected by extreme values. two medians cannot be combined to give an overall median.
mean calculation involves all data. hence it is usually more representative of the centre of a distribution. it is affected by extreme values. hence in some cases, it may give a misleading average value. two means can be combined to give an overall mean.
5)mean.
woah... i finished typing all the craps.. as if this is my maths blog.. hahahahaha:D can go copy if u wan.. lol.. anw a good ans la.. haha.. today.. ya we had assembly.. dun wan to say.. den hcl.. i give $5.50 to ms toh.. me the only 1 buying the book.. sob.. lol.. jk.. den was maths.. as i had mention above.. 2nd last lesson-- eng. we went through the english grammar 3 for the whole period. NUMBER 4-- AMBITION arghhh.. i must shout sia.. whole class was like very quiet.. anw the whole eng period i find it very funny la.. den went to cynthia's class to look for mr lim.. hahaha.. he said can hand in the lit reflection nxt week wor.. hahaha.. everyone thought must hand in today.. den rush like hell.. den ltr i went for lunch((: den come bck sch for ccm.. haha.. dun wan say wad happen.. anw the ccm.. i was damn lucky la.. nvr been called by the cher to ans ques.. haha.. ltr go befrienders room find cynthia.. den go home.. accompany her to eat lunch.. den walk home myself.. too bad cynthia nvr see her alvin when she go tuition.. haiz.. end here(: must JIAYOU:D
and so this is the ans for the 1st que done by both of us.. LOOOONNGGG!! ok haha..
What are the data telling?
1) data helps us to compare the differences and similarities of two or more variables.
2) we can find out the data we want more efficiently.
3) dot diagrams, stem-and-leaf diagrams, bar charts, pie charts, pictograms, line graphs and histograms.
4) yes.
mode of a data set is the value that occurs most often. it is easy to find and understand but it does not take into consideration the bulkof the data. it is not affected by the extreme values. two modes cannot be combined to give an overall mode.
median calculation involves just one or two middle values and does not take into consideration the rest of the data. it is not really affected by extreme values. two medians cannot be combined to give an overall median.
mean calculation involves all data. hence it is usually more representative of the centre of a distribution. it is affected by extreme values. hence in some cases, it may give a misleading average value. two means can be combined to give an overall mean.
5)mean.
woah... i finished typing all the craps.. as if this is my maths blog.. hahahahaha:D can go copy if u wan.. lol.. anw a good ans la.. haha.. today.. ya we had assembly.. dun wan to say.. den hcl.. i give $5.50 to ms toh.. me the only 1 buying the book.. sob.. lol.. jk.. den was maths.. as i had mention above.. 2nd last lesson-- eng. we went through the english grammar 3 for the whole period. NUMBER 4-- AMBITION arghhh.. i must shout sia.. whole class was like very quiet.. anw the whole eng period i find it very funny la.. den went to cynthia's class to look for mr lim.. hahaha.. he said can hand in the lit reflection nxt week wor.. hahaha.. everyone thought must hand in today.. den rush like hell.. den ltr i went for lunch((: den come bck sch for ccm.. haha.. dun wan say wad happen.. anw the ccm.. i was damn lucky la.. nvr been called by the cher to ans ques.. haha.. ltr go befrienders room find cynthia.. den go home.. accompany her to eat lunch.. den walk home myself.. too bad cynthia nvr see her alvin when she go tuition.. haiz.. end here(: must JIAYOU:D
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