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Edexcel S1 - 15th June, 2016 [Exam Discussion]

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Reply 80

megan-garner6

Does anyone have any tips on how to know the skewness of the data? I always get them mixed up! Thanks :smile:

Reply 81

Nayzar

Ugh i hate this module so much. Bores me to death

Reply 82

Kevin De Bruyne

Original post by megan-garner6

Does anyone have any tips on how to know the skewness of the data? I always get them mixed up! Thanks :smile:

Just remember, left = positive, right = negative :rofl:

If you look at page 68 of the textbook, you will see why.

For the graphs, the positive skew is the one with most of the data on the left.

For the inequalitie with mode, median and mean, if all of the arrows are pointing to the left (mode<median<mean) then it is positive.

On the box plot, if the median is closer to Q1 than Q3 (i.e to the left) then it is positive.

Then the last one.. :dontknow:

positive number means positive skew, I guess.

Reply 83

megan-garner6

Original post by SeanFM

Just remember, left = positive, right = negative :rofl:

positive number means positive skew, I guess.

Ah okay thank you very much!!

Reply 84

Philip-flop

Original post by imran_

been doing past papes and getting low A's. I hate this module im resitting this also, just need a B/c to overall an A for AS maths

Good luck!! :smile:

Reply 85

ryandaniels2015

Do u think 5 papers is enough to do well in this module?

Reply 86

thenextchemist

Original post by ryandaniels2015

Do u think 5 papers is enough to do well in this module?

Lol unless ur really confident
I think you should do as many possible

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Reply 87

Kevin De Bruyne

Original post by ryandaniels2015

Do u think 5 papers is enough to do well in this module?

Do 1-2 and find out. If you ace them then 5 is probably enough. But the more, the betetr. Maybe some solomon chucked in too.

Reply 88

TS21

havent revised for a solid week and never done s1
think ill get an A?

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Reply 89

sana_97

Original post by TS21

havent revised for a solid week and never done s1
think ill get an A?

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You still can if you revise the entire book in 3-5 days and then start doing past papers and mainly questions by topic.
Keep practising the papers and with hard work you can get an A. :smile:

Reply 90

tazza ma razza

Original post by Bloom77

Yep

and about Q44, I've seen the sign for it, I don't think your supposed to know it tho

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care to explain qn 48?

Reply 91

candol

Original post by tazza ma razza

care to explain qn 48?

can you post the question

Reply 92

tazza ma razza

Original post by candol

can you post the question

oh yh that'd be useful :wink:

lol gimme a sec and check this post once i have added the spoiler thing

EDIT:

Spoiler

(edited 7 years ago)

Reply 93

sgill23

I haven't started revising for S1 yet cause I've had sciences, I have 5 days. Do you think that'll be enough to cover all S1 and hopefully achieve an A?

Reply 94

Kevin De Bruyne

Original post by sgill23

I haven't started revising for S1 yet cause I've had sciences, I have 5 days. Do you think that'll be enough to cover all S1 and hopefully achieve an A?

Yes, as long as you do those days wisely.

Work through the textbook for the first 2/3 days, practice loads of questions. Move on to past papers the next day, plus solomon papers to fill up your time.

Reply 95

candol

Original post by tazza ma razza

oh yh that'd be useful :wink:

lol gimme a sec and check this post once i have added the spoiler thing

EDIT:

Spoiler

am struggling with the format for intersection,
will have to send tonight

Reply 96

imran_

will I be better of by just doing edexcel papers rather than solomon and madasmaths papers?

Reply 97

neil20143

Original post by imran_

will I be better of by just doing edexcel papers rather than solomon and madasmaths papers?

I'd do the practice papers and then one or two Solomon papers in the run up to the exam next week. Do the IAL papers as well.

Reply 98

chris51333

That symbol just means subset. So if A is a subset of B, all of the elements in A are in B too. So A can be identical to B, or A has less elements than B, but all elements in A must be present in B. This can be shown in the venn diagram by drawing A inside of B.

I don't think you need to know this, but this was in IGCSE.