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Author Topic: MATH P4 [IGCSE] HELP!  (Read 4505 times)

Offline ashisonline

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MATH P4 [IGCSE] HELP!
« on: May 16, 2009, 07:19:43 pm »
This is a question from the spec. paper 2009...about the bar height of the histogram...what do you do after you find the frequency density?

Thanks!
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Offline astarmathsandphysics

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Re: MATH P4 [IGCSE] HELP!
« Reply #1 on: May 16, 2009, 07:27:06 pm »
Draw the histogram!
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Offline ashisonline

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Re: MATH P4 [IGCSE] HELP!
« Reply #2 on: May 16, 2009, 07:29:59 pm »
ERM, no, you're not supposed to draw...
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Offline Krissy

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Re: MATH P4 [IGCSE] HELP!
« Reply #3 on: May 16, 2009, 07:33:12 pm »
umm theres no such question  :-\
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Offline Ascer Zayan

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Re: MATH P4 [IGCSE] HELP!
« Reply #4 on: May 16, 2009, 07:33:38 pm »
Quote from: ashisonline on May 16, 2009, 07:19:43 pm
This is a question from the spec. paper 2009...about the bar height of the histogram...what do you do after you find the frequency density?

Thanks!
He didnt ask For histrogram,
he asked for cumilative frequency
However, if u want to find the height then use this ratio
F.d=Frequency divided by ClassWidth
and usually height equals the to the F.D
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Offline ashisonline

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Re: MATH P4 [IGCSE] HELP!
« Reply #5 on: May 16, 2009, 07:47:10 pm »
Yeah for the cumulative frequency, but when I find the FD, that's right but it's not the final answer...?
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Offline theigstudent

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Re: MATH P4 [IGCSE] HELP!
« Reply #6 on: May 16, 2009, 08:19:20 pm »
could any1 explain wat is sheer
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Offline Priceless

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Re: MATH P4 [IGCSE] HELP!
« Reply #7 on: May 16, 2009, 08:27:46 pm »
ok ashisonline 4 dat ques u dont need 2 bother bout FD tell me wat ques ur stuck on so i can help.
n theigstudent well shear is type of a transformation like enlargement. It has a scale factor n stuff. itz rely hard 2 explain n i myself get confused wid it. but du u want any particular help wid shear tell me so i ll try 2 help. gud luck.Take care
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Offline al noor

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Re: MATH P4 [IGCSE] HELP!
« Reply #8 on: May 16, 2009, 08:28:47 pm »
Could any1 explain 4 me the nth term??
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Offline Priceless

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Re: MATH P4 [IGCSE] HELP!
« Reply #9 on: May 16, 2009, 08:31:53 pm »
yes al noor. but du u hv problems wid finding da nth term wen ders a constant difference or wen da 1st difference is diff but da 2nd diff is da same?
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Offline theigstudent

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Re: MATH P4 [IGCSE] HELP!
« Reply #10 on: May 16, 2009, 08:34:55 pm »
Quote from: Priceless on May 16, 2009, 08:27:46 pm
ok ashisonline 4 dat ques u dont need 2 bother bout FD tell me wat ques ur stuck on so i can help.
n theigstudent well shear is type of a transformation like enlargement. It has a scale factor n stuff. itz rely hard 2 explain n i myself get confused wid it. but du u want any particular help wid shear tell me so i ll try 2 help. gud luck.Take care

maths pap june04
Q8 a vi   answers is sheer      but how do u come to know
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Offline pedrojosetrujillo

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Re: MATH P4 [IGCSE] HELP!
« Reply #11 on: May 16, 2009, 08:38:06 pm »
              Frequency                   
class with(difference between two numbers                    = Frequency density


After that you draw a scal in the y axis for the frequency density and on the x axis you put the class widths e.g 30 to 40
You then draw the bars.
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Offline al noor

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Re: MATH P4 [IGCSE] HELP!
« Reply #12 on: May 16, 2009, 08:38:45 pm »
Quote from: Priceless on May 16, 2009, 08:31:53 pm
yes al noor. but du u hv problems wid finding da nth term wen ders a constant difference or wen da 1st difference is diff but da 2nd diff is da same?

Actually all of it if u can
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Offline al noor

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Re: MATH P4 [IGCSE] HELP!
« Reply #13 on: May 16, 2009, 08:41:04 pm »
Actually all of it..plzz if u have time  ???
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Offline Priceless

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Re: MATH P4 [IGCSE] HELP!
« Reply #14 on: May 16, 2009, 08:43:42 pm »
maths pap june04
Q8 a vi   answers is sheer      but how do u come to know
[/quote]

LOL theigstudent i wish i cud help but i hv dat circled myself 2 sk da teacher if posible n if i get tym LOL. if u find da answer pls tell me cuz i myself soo confused bout shear usually. AAAAA lol i dnt understnd y da IG ppl luv 2 torture students  :P anyway gud luck wid ur xams!
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