Binomial

[warped sleet]

I am confused for this question because I thought term 2 was:
7C1 = 7
7(x)^6(y)
Cause wouldnt that make it the second term after 7C0? like how is 7C2 the second term cause it would be the third number along if you get what i mean

or wait do they not count terms like that like would it be term 0, term 1, term 2

[green heron]

My teacher taught me to count term 0 as the 1st term

[warped sleet]

yk what i think it is

the language

as in

like

[green heron]

Hm?

[warped sleet]

term 2 is not the same as the second term

[green heron]

Wording of the question prob

[warped sleet]

second term would be 7C1

but term 2 is 7C2 i think

[green heron]

Ahh that makes sense

[warped sleet]

yhh cause i was looking at some other questions and i think thats the difference

but 100% sure tho

[green heron]

How do you even manage to do uplearn in maths

It’s so slow

Like it takes ages to go through the videos

[warped sleet]

put it on 2x speed

[green heron]

True but it’s still time consuming, especially when you start a new topic and it’s asking you some random shit like “Who invented Pascal’s triangle” 😭

For the subsection quiz

[warped sleet]

lmfaooo i normally dont do the subsection quizzes i just start from the videos

[green heron]

Fairs

They do make it fun to watch tho I’ll give em that

[warped sleet]

im literally just using it cause it "guarantees As and A*s"

[green heron]

Same

[warped sleet]

that best be true 😭

[green heron]

They gave me a scholarship

[warped sleet]

wdym

[green heron]

I got it for free

[warped sleet]

ooh yh my school gave us an account

[green heron]

Oh

[warped sleet]

otherwise i would not be paying for it lol

its so expensive

[green heron]

Omg have you also encountered an uplearn problem where you get it wrong if you typed in “t” instead of “T”

[green heron]

Ikr

[warped sleet]

nah i havent

yet

[green heron]

Oh.

You will

[warped sleet]

😭

[green heron]

I don’t know wether to use TLmaths or uplearn tbh

Everyone normally uses TL

[warped sleet]

yhh i started with him before i got uplearn

hes pretty good

[green heron]

How do you balance it out

Uplearn first then him?

Then exam q

[warped sleet]

i mean i havent used TL maths since getting uplearn so idk cl

[green heron]

Alr thanks

[warped sleet]

so many choices idek which to choose lol

[green heron]

Fr

Uplearns only flaw is that people forget the info after

Which is why I use anki

[warped sleet]

i usee anki too

but not for maths

i use it for bio chem and geography

[green heron]

Hm I only made it for the statistics bit for sampling

[warped sleet]

it could be useful for like key formulas and stuff

[green heron]

You do get a formula book anyways

Anyways back to doing my hw

Do you happen to know how to do this

[warped sleet]

oh nah i havent

[warped sleet]

what topics that

[green heron]

We in the exam ofc

Well*

[green heron]

Probability

[warped sleet]

oh dont even ask me abt probability thats my least fav topic

😭

[green heron]

So true

It’s making words up now😢
P(AnB’) U (B/A’)

From a tree diagram

💀

[warped sleet]

thats some next gibberish

[green heron]

Fr

@stark whale

Nice name wtf

I think he likes piano

[warped sleet]

😭just maybe

[stark whale]

lets say theres 1000 voters
600 L, 300 C 100 D
of the 600, 35% read the festos so that's 210? (double chcek this did it in my head)
25% of 300 C voters read the festos so thats 75
x% of 100 D voters read the festos
we know that 34% of the TOTAL voters read them so 0.34 x 1000 = 340

L festos + C festos + D festos = 340
210 + 75 + D = 340
D = 55
since it asks for %...
55/340 = 0.15 (roughly) so 15%

did this last part in my head too so put the 55/340 in ur calc

[green heron]

Ty

[stark whale]

np

[green heron]

This was for my question tho

Wrong chat

😭

[stark whale]

its calm

and no i dont like pianos

[green heron]

The answer for a was 55%

Is*

[stark whale]

55 voters or 55%

[green heron]

55%

B is 15/44

[stark whale]

tf how is it 55%

[green heron]

Idk the mark scheme for my hw hasn’t been wrong so far

[stark whale]

oh wait im so dumb LOL

[green heron]

Hm?

[stark whale]

so yh the number of democrat voters who read them is 55

and since 100 ppl voted democrats

55/100 = 55%

[green heron]

Alr

Any idea about b tho?

[stark whale]

looks like a smelly one

lemme see

[green heron]

😭

Ok

[stark whale]

so assuming there's 1000 voters

how many didnt read the festos

[green heron]

Well it says 34% read it

So 100-34

%

[stark whale]

well yh but you need number values

thats why i said how many not what %

[green heron]

66% * total which is 1000

660?

[stark whale]

yh

so thats our condition

we're looking for the number of tory people who didnt read

what's the denominator gonna be

[green heron]

75 conservative read festo so 225 didn’t?

225/660

Is 15/44

Yay

[stark whale]

gj