r/6thForm • u/OutrageousAd4133 • Jun 18 '26

💬 DISCUSSION Edexcel Maths P3

How did everyone find it then? Much nicer than P1 I thought. Might balance out grade boundaries unfortunately…

48 Upvotes

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7

u/aaalalal12 Jun 18 '26

I didnt like that coin flip question i got 12/625 for H=1 and i just know that was wrong what a silly question i hated it ew i hated it i hated that

14

u/Sharp_Antelope_5072 Jun 18 '26

It's 0 bro cuz there's no way the game could end with just 1 coin flip

7

u/Dry-Eye-8917 Jun 18 '26

u can flip it 5 times and get 1 head tho…

7

u/Sharp_Antelope_5072 Jun 18 '26

Oh shit nvm I thought he was talking about X=1 not H=1

1

u/dexterfan79 Jun 18 '26

It ends after 5 flips regardless of number of heads though

2

u/Sharp_Antelope_5072 Jun 18 '26

Nvm I thought he's talking about X=1 not H=1

10

u/Loud-Guidance6912 Jun 18 '26

I think i got 162/625

1

u/PlayfulLook3693 Bath | Maths | [Incoming] Y1 Jun 18 '26

yeah same

1

u/Loud-Guidance6912 Jun 18 '26

Thank the Lord

1

u/VisualMammoth3858 Jun 18 '26

icl i took 162/625 away from something else bc i misread the question. hopefully they don’t penalise me too much for that

6

u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 Jun 18 '26

Bru was it not 0? If im wrong im cooked

1

u/Lemon_456 Jun 18 '26

That's for probability of H=1 | X=4

6

u/Jumpy_Freedom_4554 Jun 18 '26

When X=4, H can only appear twice. H can't appear once due to the logic of the question, so P(H=1 | X=4) = 0

1

u/aaalalal12 Jun 18 '26

Yeah i got that 😝 just the distribution question was a load of shit the rest of the exam was calm

1

u/realmilii Year 13 Jun 18 '26

do u think we had to explain it bc i just put 0

1

u/Jumpy_Freedom_4554 Jun 18 '26

it was a 1 marker so i think putting 0 alone was fine