PLEASE PLEASE HELP!!!!Car survey, maths coursework Watch

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Adam
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#1
Report 16 years ago
#1
I desparately need help on Maths courdework. The survey of cars and you have to compare such things as Miles per gallon to average price of a car. If anyone can help or actually give me the coursework I would be really grateful and you would have helped someone out who is in trouble.

PPPPPLLLLLLLLLLEEEEEEEAAAAASSSSS SSSEEEEEEEEE!!!!!!!!

FROM ADAM
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gilyan
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Hey Adam, can you state the problem as your teacher gave it, then I'll try and help.
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adam
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i was given a set results from cars including miles per gallon price and engine size etc. i then have to compare average price to average engine size finally ending up with the comparisons then i have to use cumalitive frequency to find the average of things. after this i will have to find the car which is most value for money. if u really want 2 help i will giv u the list of cars etc.
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gilyan
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So, you've got a list of different cars and you've got to pick the one which is cheapest to drive? Considering mpg, insurance cost, road tax, diesel/unleaded, number of doors(?) Are you expected to pick one model, like vauxhall corsa 1 litre 3 door unleaded - or not as precise as that?
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adam
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well ive chose the 4 most common cars which is ford rover vauxhall and fiat. i now want 2 find the average price of a car when new using cumalitive frequency but i cant do it.
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gilyan
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OK, so you're meant to have about 30 cars per sample. To use the cumulative frequency you need to do a grouped frequency table first. Say,
Price Freq C. Freq
0<£<2000 1 1
2000<£<4000 4 5
4000<£<6000 7 12
...

and then plot the graph. I would suggest you do boxplots as well, for all 4 makes on the same scale.
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gilyan
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Also, you might want do scatter graphs to show their is a relationship between the variable and the price.
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#8
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#8
hi i have to hand in my maths course work tomorrow (19/05/03) and i am really really stuck!i have done all of the work leading up to the final equation! has naybody done this before? please help me
it will be appreciated loadzzzzzzzzzz!
kt
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#9
Hi im really struggling 2 find out how u do the cumulative frequency graphs. If anyone could please tell me the procedure and which axis are labelled what, i would be very grateful.
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#10
hey i got that coursework , that was the sample coursework my teacher gave me. my courseowrk was different but based on the same skeleton. tell me if u wnat it . its 30 pages long
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#11
is it A level , or GCSE
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#12
if its GCSE then can i have a look at the sample please
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bloodhound
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#13
sorry its A LEVEL , further maths.
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#14
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#14
can some1 please just tell me wot the axis are and how 2 plot the curve becasue on mine , my line does not look like an s-shape but instead more looks like a M-shape!!

SOME1 PLEASE REPLY AS THIS IS URGEANT
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bloodhound
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the y axis is the cumulative one. and x axis are the classes what whaever you call it. remember that the cumulative function is always increasing. there the gradient is always positive. if you have something like a normal distribution most of the objects are near the median. thats why teh gradient slowing increases as the rate of change of the sum increases and decreases after a while.
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well my 'norm' sample consists of 30 cars which is suppose 2 be compared with my 'extreme' sample of another 30 cars. If im meant to compare the prices of my 'norm' sample 2 my 'extreme' sample, wot will be the classes?

and if so am i doing this correct so far?
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bloodhound
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#17
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#17
I dont think cumulative diagrams are used to compare two samples. First of all tell me what do u mean by compare. compare what?
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