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Edexcel A Level Further Mathematics Paper 3B: Further Statistics 1 9FM0 3B - 17 Jun 2022 [Exam Chat]

Here is the exam discussion for this exam. Talk anything from how to revise for it, specific questions or time management

Date/Time: Friday 17th June PM

Length: 1h30

with revision and exams

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Advance info for this doesnt really give much away, what do we think will come up?

Original post by Thomasmcfeccco

Advance info for this doesnt really give much away, what do we think will come up?

I mean the only particularly revealing bullet point is the chi squared one - which specifies that it's a binomial one

Original post by HoangK

Guys, what about the power of the test, didn’t see they mention that

the final bullet point is type 1 and type 2 errors, so there will be a question on quality of tests

Original post by millie-164-

the final bullet point is type 1 and type 2 errors, so there will be a question on quality of tests

that and the hypothesis testing probably 2 of my weakest part.

Original post by HoangK

Anyone knows whether can I use the calculator for the Central Limit theorem, will I lose 1 method mark there without standardised it although I get the correct answer?

depends how harsh the mark schemes are - i usually write down each stage of my working even if i'm just plugging everything into my calculator

Original post by HoangK

Anyone knows whether can I use the calculator for the Central Limit theorem, will I lose 1 method mark there without standardised it although I get the correct answer?

On the mark schemes I've seen (and even the ones on the topic tests they gave), they give both methods, so it's your call (although I'm sure Edexcel realises the increasing use of calculators). I personally just do it on the calculator. Unless you need to find a variable within the distribution where you kinda have to standardise it

How did the exam go?

Original post by HoangK

Anyone knows is the binomial question about the cubs is rejected or accepted?

And what you guys get for the P(X^2<1-2X)

And what you guys get for the P(X^2<1-2X)

I got 0.35 for that P(X^2<1-2x) one and I can't remember the cubs ome

Original post by Hychro617

I got 0.35 for that P(X^2<1-2x) one and I can't remember the cubs ome

0.35 also, the cub one I rejected, I just worry bc I get the Test Statistic quite high due to there is 3,75 in the middle so I combined cells. U guys only combine 2 and 3 or combining all 2,3,4?

(edited 1 year ago)

Original post by HoangK

0.35 also, the cub one I rejected, I just worry bc I get the Test Statistic quite high due to there is 3,75 in the middle so I combined cells

Oh yeah I got rejected because it was greater than

Original post by Hychro617

I got 0.35 for that P(X^2<1-2x) one and I can't remember the cubs ome

Did you do P(X=0) + P(X=-1)?

Original post by HoangK

0.35 also, the cub one I rejected, I just worry bc I get the Test Statistic quite high due to there is 3,75 in the middle so I combined cells

Wasn’t it 37.5?

Original post by grhas98

Did you do P(X=0) + P(X=-1)?

Yeah, I put both of them into a table and compare

Original post by HoangK

Yeah, I put both of them into a table and compare

Cool just checking because I can’t remember my answer lol

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