Exam Hack | CIE AS Maths | S1 | Normal Distribution Question - PART 2

Download Worksheet:
drive.google.com/file/d/1dwYI...
Exam Hack Series for S1: • EXAM HACK SERIES | CIE...
Exam Hack Series for P1: • EXAM HACK SERIES | CIE...
Exam Hack Series for Mechanics: • EXAM HACK SERIES | CIE...
Exam Hack Series for P3: / itsintuitive
Exam Hack Series for S2: / itsintuitive
Email: [e-mail]
Instagram - / intuitive_ed

[@nundlolltawfeeq6337]

bro lives in a tent and teaches maths. what a life !!

[@purityvsprofanity2962]

was just about to ask the same thing. So cool!

[@relaxingepic9972]

camping and sharing knowledge; swag at it's peak

[@Intuitive_education]

What do you think? Any questions on this type of question? Like, subscribe and share!

[@majduleenx964]

sir when do we add 0.5 and when do we subtract 0.5

[@majduleenx964]

@Khush Bakht Khan tysm can u pls send it here?

[@majduleenx964]

@Khush Bakht Khan tysmm i appreciate it

[@MuhammadAhmed-lc1op]

@@majduleenx964 we add when there is a greater than or lesser than equals sign
we subtract when there is a lesser than or greater than equals sign

[@boxbird5723]

@@majduleenx964
"When we approximate a discrete distribution by a continuous distribution, a discrete value
such as X = 13 must be treated as being represented by the class of continuous values
12.5ø X < 13.5. For this reason, X = 13 must be replaced by either X = 12.5 or by
X = 13.5 in our probability calculations. Making this replacement is known as ‘making a
continuity correction’. Deciding whether to use X = 12.5 or X = 13.5 depends on whether
or not X = 13 is included in the probability that we wish to find.
For example, if we wish to find P(X < 13), where X = 13 is not included, we calculate
using X = 12.5."

[@galmaria888]

Thanks very much for your videos and explanations. You should know that you are helping lots and lots of kids (and parents).

[@rabiarizwan4123]

You’ve made this topic so easy 😭😭😭🙏🙏🙏

[@puddleduck1405]

yeah frrrr

[@rabiarizwan4123]

THANKYOUUUU SOO MUCH!!!!

[@TurboTech22]

These are super useful please make videos on Maths A level p3 that’d be of tremendous helpp

[@honordarby5965]

Amazing!

[@beastmaster69420]

This is so helpful thank you so so much 😭😭😭

[@salvadorsolana1168]

amazing work

[@canibotlin8302]

Firstly thanks a lot for your content its was extremely helpful for my exam preparation! Just a quick correction tho at 10:14 the marking scheme said to justify the use of approximation we should use np > 5 and nq > 5 and not npq > 5.

[@samhithaahoratra2040]

where is that wriiten?

[@baaqirmerchant1171]

"us" moment@@samhithaahoratra2040

[@MalefetsaneLengosa]

You dont know how amazing you areeeeee🎉🎉🎉🎉🎉 you do tt😂❤❤❤❤

[@KRGAMING]

your are a SAVIOUR man

[@clipHero369]

ohh my god i love you soo much

[@saraaliyeva852]

Heyy! In some questions when the z value is negative, we subtract the Фz from 1. How would I know whether I actually need to do that or not cuz you didn’t do it here in the explanation.
Also thank you so much for the videos! These literally saved my life

[@SomanshSPJHPNU]

if u have p(z > -k), you can just switch the inequality from > to < and then make it positive, so that can be written as p(z < k) which is Фk. But if u have p(z < -k), then you make it p(z > k) when u switch the signs. then in THIS case since it is greater than and not less than, u do 1 - Фk to get the probability

[@XD_Mrbossss]

Ben Brereton Diaz from Sheffield United FC?

[@hanxiaozhang1499]

could you please tell me where to download those question collections? thank you so much! you realllyy helped my life😆!!

[@amanshaheen7042]

Link in the description.

[@rushinbhatt3861]

10:07 the marks scheme says that you just need to prove that np>5 and nq>5

[@Intuitive_education]

Well plug n, p and q in and prove it?

[@rushinbhatt3861]

@@Intuitive_education got that. I have my A-level p3 and m1 maths coming up in feb/march series of 2021, so can you please make videos on tough questions of that? this is so helpful

[@reyaanchoksi]

Are you planning on doing A2 Maths Exam Hacks?

[@Intuitive_education]

Yes hopefully if enough people want it :)

[@reyaanchoksi]

@@Intuitive_education Since the AS exams got cancelled for the May/June series I've had to start A2 content online. It's quite hard, especially for a subject like Maths.

[@Intuitive_education]

@@reyaanchoksi Well if you want real personal help from me with all the new content and the exam questions for your A2 mathematics you can consider becoming a patreon. I will be putting a lot of time into helping patreons one on one with any questions they have.

[@jasonwalon5470]

@@Intuitive_education yesssss!!

[@TurboTech22]

@@Intuitive_education yesss me too please make videos on Maths p3 cuz we have feb March 2021 coming upp

[@kquote03]

Are you,,, in a tent???

[@Intuitive_education]

Haha yeah

[@MuhammadAhmed-lc1op]

@@Intuitive_education why?

[@puddleduck1405]

@@MuhammadAhmed-lc1op why not?

[@zane919]

Not sure where u get the 5 from when justifying the approximation

[@puddleduck1405]

oh its just a rule. When u approximate the binomial using the normal, the np and the npq must always be greater than 5. if not, then u cant use the normal to approximate it :)

[@xizx2597]

@@puddleduck1405 how do you decide when we are supposed to add or subtract (.5) from the value

[@Faster2525CK]

@Jovana Petrovic so you must check whether it's greater than 5, in the first step while caluclating npq??

[@sk9lf]

can someone explain the approximation part? any 2024 viewers?

[@NightIy]

you just make you mew and variance with np and npq respectively, use that for your normal distribution and everything else goes the same way as type 1 normal distribution video he made

[@22Hammy]

r u Australian or British?

[@n.m.daadhil6840]

Bro came straight out of a legend