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AQA A-level Biology Paper 2 - 13th June 2025 [Exam Chat]

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Reply 740

nararaz

Original post

by _ricoraju_

The degrees of freedom for chi squared was 3 right because there were 4 options and n-1 is 3

that’s right? omg if it is i’ll think the lordddddddd

Reply 741

wxyz78910

Parent child parent child,,? i dont think i put them in the order which the gel lines were shown

Reply 742

i_ir05

what was the explanation of doing chi squared? so that we could see the difference between the expected and observed outcome

Reply 743

cocoroses123

Original post

by owls1999

nvm mate we wrong , long response time means delay lol not a faster response time

omg noooo way i feel like pulling my hair out

Reply 744

Musa16

Original post

by Guest2091

there is no significant difference between expected number of shrimp in each chamber compared to actual number

It said to mention the word probability and chance I’m pretty sure

Reply 745

SH124MA

Original post

by i_ir05

what was the explanation of doing chi squared? so that we could see the difference between the expected and observed outcome

Because data is categorical

Reply 746

charles.lockyer7

What did everyone say for that parasympathetic nervous system question ?

Reply 747

cocoroses123

Original post

by a'swithaafiyah

a lot of people said it was good so probably will be

Ye but paper 1 was horror

Reply 748

i_ir05

Original post

by duzza

https://docs.google.com/spreadsheets/d/1WjwPgaJRUlGx7FECzMCwuLrPzU7j_T_qhhIOZ_yVnwg/edit?usp=sharing
Responses

cant access it

Reply 749

a'swithaafiyah

Original post

by cocoroses123

Ye but paper 1 was horror

very true

Reply 750

BigJ768

Was it point of validity against or for

Reply 751

a'swithaafiyah

Original post

by cocoroses123

Ye but paper 1 was horror

but need specific number of marks per paper to get a grade which is then totalled to get overall grade

Reply 752

shmuel88

Original post

by i_ir05

what was the explanation of doing chi squared? so that we could see the difference between the expected and observed outcome

yes and it was categorical data

Reply 753

cantankerous-gai

What did u guys put for the first question after the comprehension on ecosystem? I yapped about niche and habitats and populations 😭😭😭

Reply 754

cocoroses123

Original post

by a'swithaafiyah

but need specific number of marks per paper to get a grade which is then totalled to get overall grade

Oh- I didn’t know that

Reply 755

TheVirtuousKiwi

Original post

by cantankerous-gai

What did u guys put for the first question after the comprehension on ecosystem? I yapped about niche and habitats and populations 😭😭😭

yes thats what i put

Reply 756

Musa16

Original post

by a'swithaafiyah

very true

Probably around the same as 2024 so higher paper 2 grade boundaries but lower for paper 1 so overall it should be around the same for 2024

Reply 757

Pineapple.125

Original post

by cantankerous-gai

What did u guys put for the first question after the comprehension on ecosystem? I yapped about niche and habitats and populations 😭😭😭

Yeah I talked about niches too but I felt
Like I was grasping 💀

Reply 758

cantankerous-gai

Original post

by wxyz78910

Parent child parent child,,? i dont think i put them in the order which the gel lines were shown

Child 2 was the CF child 4 was FF 1 and 3 were parents

Reply 759

shmuel88

Original post

by BigJ768

Was it point of validity against or for

i think for

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