Class of 2025 (2025 HSC CHAT) (26 Viewers)

[parmesean]

thats good then. also would you recommend using the sample proportion formula or the normal formula for expected value and standard deviation when the question doesnt explicitly mention one specific thing

i thought these were for different types of data, iirc, use the normal formula whenever the data should follow a normal distribution like marks, height, weight, etc. (numerical data)

im pretty sure u only use sample proportion for categorical data (success/fail) within a given population, then examine how far that strays from the expected value

then again i coulda totally forgotten but im pretty sure they are for different scenarios.

 

[bigupsanky]

i thought these were for different types of data, iirc, use the normal formula whenever the data should follow a normal distribution like marks, height, weight, etc. (numerical data)

im pretty sure u only use sample proportion for categorical data (success/fail) within a given population, then examine how far that strays from the expected value

then again i coulda totally forgotten but im pretty sure they are for different scenarios.

ig but i just discovered both of them give u the same result so i was wondering which one was the better formula to use

 

[parmesean]

ig but i just discovered both of them give u the same result so i was wondering which one was the better formula to use

whenever ur given a population / number of trials that is like NOT huge you should use the sample population formula since things act more eratically at low samples

for example if i flip a coin 20 times, theres a very low chance it behaves as a normal distribution, however if i flip it 2,000,000 times then the normal curve will come about,

so in those cases where the normal curve isnt basically guaranteed, i.e youre given a population, number of trials that satisfy

np ≥ 10 and n(1−p) ≥ 10 <--- this is not a math rule this is just a rule of thumb, itll be very clear in the HSC what they want

then u can use sample

 

[bigupsanky]

whenever ur given a population / number of trials that is like NOT huge you should use the sample population formula since things act more eratically at low samples

for example if i flip a coin 20 times, theres a very low chance it behaves as a normal distribution, however if i flip it 2,000,000 times then the normal curve will come about,

so in those cases where the normal curve isnt basically guaranteed, i.e youre given a population, number of trials that satisfy

np ≥ 10 and n(1−p) ≥ 10 <--- this is not a math rule this is just a rule of thumb, itll be very clear in the HSC what they want

then u can use sample

alr bet thanks a lot

 

[Clai]

when the hsc papers give sample answers, r those full mark answers?

 

[gossipgirllll]

do u guys think hsc markers follow ECF within the same question but not part a, b like one question like idk how to explain it but

 

[bigupsanky]

when the hsc papers give sample answers, r those full mark answers?

yea? thats why its a sample answer i think

 

[its_ace21]

when the hsc papers give sample answers, r those full mark answers?

Pretty sure they just scratch a band 6 mark coz some of them aren’t that detailed

 

[parmesean]

do u guys think hsc markers follow ECF within the same question but not part a, b like one question like idk how to explain it but

they do, if you forget a square or smth early in your work but go on to use all the right working to achieve an answer, then you wont lose more than 2 for that question

 

[gossipgirllll]

they do, if you forget a square or smth early in your work but go on to use all the right working to achieve an answer, then you wont lose more than 2 for that question

ok good thankyouuuuu

 

[gossipgirllll]

IM DEAD I HAD TO CATCH UP ON ALL THE MESSAGES YALL BE TOO FUNNY THE ONLY PART ABOUT HSC ILL MISS IS BOS BRUH

 

[bigupsanky]

whats ecf?

 

[gossipgirllll]

whats ecf?

error carried forward

 

[bigupsanky]

error carried forward

oh ok ok

 

[reniiiblaseee]

Pretty sure they just scratch a band 6 mark coz some of them aren’t that detailed

hi any last minute bio tips

 

[parmesean]

IM DEAD I HAD TO CATCH UP ON ALL THE MESSAGES YALL BE TOO FUNNY THE ONLY PART ABOUT HSC ILL MISS IS BOS BRUH

i just read back through the time i left last night andthefirst thing i see is lolcti saying she wishes she could transmit an sti to me so i suffer

 

[Clai]

i just read back through the time i left last night andthefirst thing i see is lolcti saying she wishes she could transmit an sti to me so i suffer
View attachment 49931

bro thinks she can hit omllll

 

[parmesean]

bro thinks she can hit omllll

Idk what her sti huzz would think about that

 

[its_ace21]

hi any last minute bio tips

Girl please don’t remind me of bio the only thing I was doing was praying lowkey bio was like my worst subject please don’t remind me

 

[gossipgirllll]

bro thinks she can hit omllll

LMFAOOOOOO