A-Level Maths: N2-13 Normal Distribution: Continuity Correction Examples

[@imma_eatjin]

THIS IS CRAZY HELPFUL YOU JUST TAUGHT EVERYTHING MY TEACHER COULDNT!! THANKS SIR

[@joshsingh43]

This is a great way of remembering !

[@TheSonictheplayer]

you are a real king jack

[@haizain677]

Legend! Great videos. Thanks

[@FuqqahAsif]

thank you so much, you're a godsend.

[@RB-nh1om]

3:45 wouldn't it be less than or equal to 7.5 rather than less than 7.5

[@TLMaths]

For a continuous distribution, P(X

[@deuterium4.028]

this makes so much sense now, thanku

[@SportifyZone]

Great!!! It Helped in my study 😄😊😊😊

[@AlEx-ro7kd]

hey sir! Apparently in my cgp aqa maths book, they mentioned that when 'n' is large, the approximation is accurate enough without needing to apply a continuity correction. I'm not sure if this applies to the other specs but I don't know if this info is real, even if it's from a respectable brand. Could you check if a continuity correction is needed for aqa exam this year?

[@TLMaths]

Effectively, AQA's approach to the continuity correction is that it's not required as the calculator can deal with any binomial distribution (whereas when we didn't have a calculator that could do that, we had to use the tables which didn't have every n and p). However, I would at least make sure you know the conditions for which a normal approximation will work (n is large, p is close to 0.5)

[@AlEx-ro7kd]

@@TLMaths thanks! that clears up everything :)

[@manomaylr]

We do Edexcel and we were not at all taught this - will we get marks if we just apply the continuity correction consistently?

[@yz249]

1:57 Shouldn't it be 2.5 is less than or equal to x , not just less than? Or does that not matter.

[@TLMaths]

For a normal distribution, as P(X=a) = 0 this means that P(X

[@yz249]

@@TLMaths thanks!

[@316hellborn]

God sent!! Thank you!!

[@Meeroo670]

This's so helpful ^_^

[@Fhfhfhfhchchd]

is this in OCR??

[@frankjackson655]

You saved me sir!

[@hackercop]

This is really helpful thanks

[@manomaylr]

So in other words the continuity corrections are just upper and lower bounds for each integer value?

[@TLMaths]

Essentially yes

[@ik6882]

What if the discrete data says p(x=7.5)??? Would I have (7,8) as the boundaries?

[@TLMaths]

A Binomial Distribution only takes on X=0,1,2,3,4,5, etc, so it can't take on 7.5.

[@mingyang5801]

Very helpful!

[@jayadityaramracheya65]

Omg thank you

[@mwizzzz]

🔥🔥🔥

[@jiggysaint3790]

👏👏👏👏

[@adamali8725]

Plugged it differently

[@buzzardbill2945]

stunning