Bayes theorem trick (solve in less than 30 sec )
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- เผยแพร่เมื่อ 13 ต.ค. 2024
- 𝗗𝗢𝗪𝗡𝗟𝗢𝗔𝗗 𝗦𝗵𝗿𝗲𝗻𝗶𝗸 𝗝𝗮𝗶𝗻 - 𝗦𝘁𝘂𝗱𝘆 𝗦𝗶𝗺𝗽𝗹𝗶𝗳𝗶𝗲𝗱 (𝗔𝗽𝗽) :
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One doubt how to identify that question is bays theorem
Pagal ho tum gadhe ho mahapagal insaan
Me watching this one hour before leaving to go write exam 🙂
Thuu
Kya hua match hua yr questions
Sameeeeeee!!!
😅😅😅😅👍👍👍
It became fashion to tell like this You should be shame of it
Sir at 10:50 of this video ,,, P(D/A) will be 0.02 ... There by mistake you wrote 0.04..
But nicely explained sir ... It helped me a lot...
Nice bro
2022 and this video is still the most simplest explanation and so easy to understand. Thankyou :)
Correct 🔥❤️
Thank you for your comment🙏. Comments like this makes easy for us student to select a video and decide quickly if its worth our time or not🔥
@@tanishjain1898 agreed bro.. well said
Is there a mistake in example 2?
In the denominator shouldn't it be (0.02*0.6)?
It's a very helpful video
Thank you very much
Looking forward for your next videos.
Yeah bro
yes 4/25 is the answer
Yup buddy u r right
exactly you are right, i was looking for your comment !
Yeah bro
Sir, I literally have to thank u to the core..for past two hours I am solving problems from baye's theorem.. not even a single answer went ryt.. jus after seeing ur video the first question which I did was right.. it gave me immense pleasure.. Thank u soo much for ur efforts sir 👍🙏
Pleasure🙂
*Summary for myself*
1.A....box or urn.(which contain the elements)
2.find conditional probability (......from....
.) And write it as a/b
3.change question to opposite than 2 and plug values to get answer
at the beginning i was struggling with this Bayes but now i can solve all the Bayes questions using your method.thank you very much sir.
MyName Hero
I am happy that you find this video useful ☺️
do share with your friends too 😃😃
Bhai abhi Kya kr raha hai...6year ho gye 12th pass hue?
Really amazing way to remember.... by the way today is my math cbse board....am jus watching this :)..
Thank you so much sir !
sir, it should be 0.02 instead of 0.04 in the last step for P(D/A)
Answer should be 4/25 ❤️
TH-cam recommend this video today😶
Title - Solve in less than 30 second
Video - 11 minutes
That's what you need to do :)
@@benjaminbutton9779 its explaination..idiot
its explaination idiot
@@teenager6030 No wonder you are a teenager :)
@@krutpatel8168 hope..u finally understood
At around 2:23, is that the conditional probability? Is it not about the probability of having x given that A has already occured?
Sir...please respond..
How do we know we have to apply Bayes theorem here? It could be solved normally also...
Explanation is very simplest and understandable.. watching after 6 years. sir such btau toh copy m likh k samjate ho toh.. 6th 7th class k tution wali feel aati h. jo teacher pr black board ni hota h wo bhi aise hi samjate the tution m. or mast samj aata tha.
Solid explanation. I appreciated the quick review to make sure we understood the basics before tackling the topic.
In normal probability in example no 1... P(A) = 1/2....it's based on box or item like red ,white etc...P(A) should be equal to (red) / (red+white)...????
One mistake, in 2nd question you have input wrong value of P(D/A), it will be 0.02 but there it is 0.04 . Plz pin so everyone can make correction . Thnx 😀
yess and then the ans is 1.6 which is not possible
@@simranzutshi7346answer is 16% maam plz check yourself again.
its cool ....what took years for me to understand could easily understand in 10 mins :)
+krishna kireeti
Ty 😃
Share with your friends too 😊😊
Yes sir
Been struggling for an hour. Understood in 10 min. Thank you.
This was such a good explanation of the concept. Thank you so much!
Me watching this 3 hour before class 12 math 2024 board exam😂😂
Me too bro 😢
I have a doubt in the 2nd question. Why is P(A), P(B) and P(C) taken to be 0.6, 0.3 and 0.1 instead of all being 1/3? because what I understood was that 0.6 is the probability of the item being from box A and not the probability that the box is A out of A, B, and C.... and the defective items are from the produced items so shouldn't the conditional probability of the defective item being from box A should be P(D|A) = 0.02/0.6 = 0.03 and the same goes for P(D|B) and P(D|C)? I am a bit confused.... I know it has been 3 years since the upload but I would be really grateful if you saw this comment
At your last example I believe you have plugged in the wrong value of P( D | A ). It should be .02 not .04. Nonetheless it was a great video.
Chester Neil Maringal
yes it should be .02
thanks for correcting 😃
I was looking for this
thank you making it simple. which book did you referred to get this urn problem from ?
Thanks for the video... I'm at right place to learn probability...
There is one correction in last question P(D|A) value is 0.02 instead of 0.04 ... So there is just calculation mistake... Ans is = 4/25
Yess
If 'x' and A are two events associated with the same sample space of a random experiment,the Conditional probability of a event is 'x' is given than A has occurred. is given by
P(x|A)= P(A and B)/ P(A)
At the name of conditional probability you're telling the classical definition of probability
sir plzz tell me....how we know that the it is the question of Bayes theorem???... its always confuse......
Thanks Shrenik. i think in the second question you got P(D/A) wrong in the last step. it should be .02 and not .04. final answer should be 4/25=16%
Hardeep Singh
yes you are right
sry it was my mistake in plugging values .
ty for correcting :)
right
Hardeep Singh sir volume nhi h
YEAH BRO EVEN I THOUGHT THAT I WAS WRONG BUT THEN YOUR COMMENT ASSUTED ME. tHANKS BRO
Ri8 brO
I think I now actually understand what Bayes has been saying all along. Thanks for the video
the value you put in numerator is wrong .p(D/A).p(A)=0.6*0.02*(it's right)
There is a mistake in the 2nd question's answer. U have place the wrong value of D/A in the formulae thats why answer came out to be wrong. Probablity will be 16%
Thats wht I was searching
I loved it
The best tutorial so far
GREAT JOB WE NEED MORE SAVIOURS LIKE YOU
Hello sir the explanation was awesome 💥, But I got a doubt, how do we find that the given question is based on Baye's Theorem or it is Conditional probability?
Even I hv the same question
sir, how 25/52 Answer come, i think answer will be 35/36? am i right?
Thank you so much sir, this video and your thorough explanation helped me alot in my super last time before exam and I'm just very happy. A big wish and a thank you sir💛🙏
Last math has a miscalculation where u multiplied 0.04*0.6 in the denominator where the defective percentage was 2% for A machine.
The final ans of 2nd math will be 4/25
Thank you. I'm currently studying for my macro/micro exam. This has 100% helped me with understanding Bayes theorem. Thanks a lot!
InpropaKonduct Thistlethwaite
best of luck for your exams 😃
Share with your friends too 😊😊
@Ashish Rana 1 box out of 2 boxes =1/2
This 🆔 of his is brilliant.... Uh can be so fast from his tricks on addition to it... Where children are confuse.... I solve it quickly instantaneously from uhr tricks.. U r excellent all need this type of tutor but I think uh should add some more questions to your videos in which if a person cracks any of the exam just bcoz uh... Thanks TH-cam n uh
:)
Thanks Anna. The way u explained giving reasons for every step was amazing. Now I understood which to take as a condition
+KAVITHA JAGANATHAN
Welcome 😃
Share in your groups as well so that we can help many students 😊
Super explanation.. sir please make the video's on NUMERICALS METHODS, FINITE DIFFERENCE METHODS, BOUBDARY VALUE PROBLEMS HEAT EQUATIONS POISSONS AND WAVE EQUATIONS
Thanks for your explanation but please revisit the last answer please...am getting 16% as my answer. Check ,possibly you mixed up the 2% with 4% wen dealing with machine A. Thanks.
I found the video lecture interesting. Thank you, but there was only one error at the end that the answer was supposed to be 4/25 or 0.16 but because P(D/A) was considered incorrectly as 0.04 not 0.02 which made the final answer 4/37. Anyways the explanation was really good. 👍
Same even I got this answer
Hi Gowtham, Can you please help me how to solve this question.
The proportion of eligible voters in the next corporation election (in tumkur) who will vote
for the incumbent is assumed to be 55%. What is the probability that in a random sample of
500 voters less than 49% say they will vote for the incumbent
Correct me if Im wrong(I suck at maths) but isnt the boxes example given in the normal probability distribution more akin to Uniform probability?
man this was awesome...never understood this concept untill i saw this. thanks
ritesh pandita
Welcome 😃
This is uploaded 4 years ago......
the hard work you put sir....commendable.
KYA HI TOH BAAT HAI....❤️❤️
glad I peeped into ur video , unless won't be able to understand even after watching many videos . thanks alot
NARCOS
Welcome 😃
What are you doing rn
Bhai Dil bole shrenik Jain.
From today onwards started following you on Quora.
Ocean of respect for you
Watching in 2024 gate on the date of examination❤❤
Sir at 10:50 of this video ,,, P(D/A) will be 0.02 ... There by mistake you wrote 0.04..
so the answer will be 4/25.
Gentleman watching this before half an hour of exam 😂😢
nice explanation and very good approach..
but..[In the 2nd question, the value of P(D/A) is 0.02 but you have put wrong value in the formula(0.04) so it give wrong answer(4/37)and the right answer is 4/25] ...but video is very helpful..thankyou🙏
this was very helpful... the explanation made it much more easier... thank you helping out😊
sonalee singh
Welcome 😃
Share with your friends as well 😊 so that we can help many more students 😊
Yes
But Bayes Theorem formula is different than what you have used it is P(B|R)=P(R|B)*P(B)/P(R)
Isn't it correct me if Iam wrong.
Thank you! I was struggling with Bayes and found your tutorial. You've made it very simple. Looking forward to future videos!
Hyper Sports Media
ty 😊
@Ashish Rana bro we have 7balls in box u pick only one ball and u dont know what is the colour of then u pick one ball so in the box have two colours of balls then we write 1/2.
@Ashish Rana @TELUGU BOY ✔ P(A) and P(B) are probability of selecting the boxes. We can choose any box. So both the boxes, A and B are equally probable. Hence, P(A) = P(B) = 1/2
please check the value of P(D/A)XP(A) at last it was putted wrong
Kal exam hai aur abhi dekh rhi hu 🙃
Hey bro preparation ho gaii kya puri
Hum to abhi dekh rhy😢
what is difference between mutually exclusive and independent probability please reply me sir
interesting, you've grasped the concept well I guess since you are able to explain it so well in the simplest of terms.
you can apply these for deduction in real life, mathematically becoming somewhat of a Sherlock :p
+Jordan Raven
🤣
why is the question must be the second? For the example at 8:00, the question clearly said " find the prob it was drawn FROM second box", and selecting element should be Red balls, from 2nd box. why is it P(B|R) instead of P(R|B)? Sorry but i dont get it.
Lu Eyang
always selecting element from box is possible .so P(R/B) is possible
therefore Q is opposite of it I.e P(B/R)
Oh yeah thanks ya I was mistaken on fundamental stuff sorry
Lu Eyang
OK no problem 🙂
Thanks for making video on it, 😭🙏🏻now i can die peacefully 😭😂😭😂😭😂😭😂😭😭😂😭😂😭🔥
Ha ha ha.....well said
Thankyou so much 👍 u must be no.1teacher in india
Q1 Ans: 27/52
Q2 Ans : .16 or 16%
Yup. He didn't use the value of P(D|A) as 2% or 0.02 in the denominator.
Hi
the value of P(D|A)=0.02 and in solution you have taken 0.04
Kindly change that
Thanks, the video was much helpful for the concept
awesome !!!
very helpful lecture and thank you for going with all step by stem wonderful explanation.
ahamad romen
welcome 😃
do share with your friends too😊
watch this tutorial for understanding probability problems easily (step by step)
th-cam.com/video/NRLlG74_UjE/w-d-xo.html
you have made a small error for P(D/A)= 0.2 you took 0.04 , so if you change the value the final answer will be = 0.16 -->P(C/D)
Oh man u explained it like a child's play ty sir u saved me 🙏🙏🙏
Welcome :)
If this video helped you then please share with your friends too 😊
Mihir....and exam Mera bhi🤟😑
i have a question plz solve that for me by above method you described in your video... Question is : A man is known to speak truth 3 out of 4 times. He throws a dice and reports that number obtained is a six. Find the probability that it is actually a six? Waiting for your response Sir... Shrenik Jain
Pura semester guzar gaya mam ki smjh nahi aa rhi.. kea kra rahi probability mein..
but this videos was amazing, atleast smajh a gya hai k kaha se question ko judge krna hai wht we have to find...
Thanks you so much..
Blast of thanks from Pakistan..
last one answer is 4/25 do correct it as aapne denominator me P(D/A) galat liya hai 0.04 liya hai vo 0.02 aayega ......baki awesome video thanks
Can we solve Bayes theorem like simple conditional probability?
(I am asking this bcz it is known that Bayes theorem is a particular type of conditional probability)
So there must be some way to solve it like any other conditional probability.
nope bro..
there is no difference between conditional probability and bayes theorem
bayes theorem just makes our task easier for complex conditional probabilities though we can easily derive bayes theorem from conditional probability..
if there is a picture posting option in the u tube comment section then i would have been able to convey my idea more clearly..
HIRAK MONDAL thanks
Hut chutiaa board Mai nai chalega hrami
Its really ossum bro....tq for such a good explanation....
sir , best video ... clear explaination and there is no any confusion.... no. 1 sir
+aman pathak
Ty 😃😃
Nice teaching... Can you please explain normal distribution ... Chu square and t distribution
This was the only video that provides me to understand the topic .
Özgür Derince
welcome 😃
Sir second question me aapne last me P(D/A) ki value 0.04 rakhi hai Jo ki 0.02 hai, to answer 4/37 ki jagah 4/25 aayega.
Bro or saare question ban rhe hai kya is trick se ?
Final answer of second question is not correct 4/37 ❎
Correct answer is 4/25 ✅.
If a machine is correctly setup, it produces 90% acceptable items. If it is incorrectly setup, it produces only 40% acceptable items. Past experience shows that 80% of setup are correctly done. If after a certain setup , the machine produces 2 acceptable items, find the probability that the machine is correctly setup.
1) 0.97
2) 0.95
3) 0.99
4) 0.90
0.90 But,
Why 2 acceptable items in question given?? It's of no use i think to solve it.
@@shivangsharma6929 bhai iska answer 2) 0.95 hain
Me watching after 7 year and 2 h before exam
sir can u tell me that what's the difference between law of probability and bayes therom
I got my concepts crystal clear...But i'm still in dilemma how the hell the Point (1) came on copy 00:17 😂
Same bro. 😅
th-cam.com/video/kvBUaW7aQ8c/w-d-xo.html
Same here
😂😂😂
Tona jaadu
Bro nice I have my exam tomorrow,nice tricks
thanks man .but in 2nd problem p(D/A) is substituted as 0.04 instead of 0.02 therefore the final anwer will be 4/25.........
yes ..
@@ShrenikJain n
A beautiful class please give the trick to solve the problems in linear programming by a descriptive questions
i watched many videos but this one made me understand the concept!
Bro can i know hiw did 1\2 come in normal probability pls in 1st question
Tqsm bro for this video now i am very claer with these sums...💯
Can you make videos for jee preparing students
You just helped me get over my fear of probability. Thanks buddy. You helped me a lot :)
Chandramouly INC.
I am happy to hear that 😃😃😃
hope you like my other videos of probability too😉
th-cam.com/video/NRLlG74_UjE/w-d-xo.html
Probability theory ka sabsey advance formula kya hain?? Jo surely kuch bata dega???
Kya bt h hero kya samjhayee hoo
God bless u
Owsm
Ty 😄
Share this video with your friends too 🙂😃
U wlcm Ofcourse #bhai
Hi Shrenik Jain ,Thanks for explaining Bayes Theorem trick.
I just want to know how to solve the following problem.
There are 15 people in the room. 5 is female and 10 is male.
3 of them are doctors, 7 teachers, and 5 programmers.
What is the chance for teachers to be female in that room?
I' m trying to figure out that problem.
How could I solve it? Please enlighten me. Thank you.
Extremely thankful to you for such a simple and easily understandable video.❤️
Hello sir, i just want to know how can we find last step from which we can find 25/52?
And how can we find the last step's answer to find 4/37?
There is a mistake in his calculation. Correct answer is 4/25 = 0.16 not 4/37
@@swaminathan9188 yes bro..... Brother did wrong.... I also got this Answer 4/25 😊😊
really it is very easy to understand after lecture, very nice.
Rashid Hussain
ty😊
I am doing PhD in NLP, Statistical POS Tagging, this topic was so important for me. thanks again
There is some printing mistake. The final answer for the question 2 should be 0.16 as P(D/A) is 0.02 and while substituting you have written 0.04 by mistake. Please do correct. Other than that very nice explaination! Thanks !!
TH-cam recommend me this video after 4 year
😂😂
But bayes theorem is unchanged 😎
Same here
Same here
Thank you....
Really It's very convenient to understand thank again !
Thank you so much,this really helped me a lot!
thanq sir