Probability I (GRE/GMAT/CAT)

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  • เผยแพร่เมื่อ 21 ต.ค. 2024

ความคิดเห็น • 233

  • @PerfectScores
    @PerfectScores  11 ปีที่แล้ว +6

    Thank you for watching the video with dedication!

  • @aabhishekgrover5643
    @aabhishekgrover5643 7 ปีที่แล้ว +14

    Thank you sooo much Mr. Gill, I genuinely cannot thank you enough! You are one of the best teachers of the subject!

  • @PerfectScores
    @PerfectScores  11 ปีที่แล้ว +4

    Thank you for the comment!

  • @dangermouse2990
    @dangermouse2990 10 ปีที่แล้ว +5

    As a math challenged person, this was a great straight forward review. Thanks, I take my GRE this coming thursday....

  • @mkgrace5927
    @mkgrace5927 11 ปีที่แล้ว +2

    The best teacher I've ever experienced! Thank you very much for your work!

  • @arenwalling2374
    @arenwalling2374 8 ปีที่แล้ว +2

    i missed to subscribe earlier and all this while i was searching your videos but could not locate. now I'm so happy that i Finally found you. Thanks a lot for best videos looking forward to learn from you. love your videos. Thanks.

  • @soumitrapanua4730
    @soumitrapanua4730 7 ปีที่แล้ว +6

    I think this video of basic of probability is best in the world for anyone

  • @PerfectScores
    @PerfectScores  11 ปีที่แล้ว +2

    Thank you for the comment.

  • @sarwarhossen8416
    @sarwarhossen8416 7 ปีที่แล้ว

    The most effective lesson to learn probability I seen ever. Thanks a lot Pushpinder.

  • @yashwants11122
    @yashwants11122 10 ปีที่แล้ว +3

    preparing for competitive exams.....simple and great explanation!! Salute to your efforts sir....you saved me...

  • @zazai1984
    @zazai1984 6 ปีที่แล้ว

    A video you can't ignore to give a Kudos! Thanks for the work done.

  • @narendrakolhe612
    @narendrakolhe612 7 ปีที่แล้ว

    Best Video for basic concept of Probability.

  • @rohitrizal1
    @rohitrizal1 11 ปีที่แล้ว

    All of your lecture series are very good. And you have kept the focus on concept, time saving and creative ideas, which is a complete package in itself. This is what we exactly want. Thank you.

  • @vinothspark
    @vinothspark 9 ปีที่แล้ว

    clearly explained with meticulous details, every staff should explain like you .

  • @manisfru
    @manisfru 11 ปีที่แล้ว

    after seeing your videos , i can feel the enough confidence to crack CAT 2013 ... thank you so much SIR.... one of the best lectures i found on you tube and what i like about you is that throughout your 45min video , intensity of your voice remains constant which is not so often in other's uploaders......... waiting for your other videos too

  • @chanchalbhargav5227
    @chanchalbhargav5227 6 ปีที่แล้ว

    watching this video will be the best utilization of time if you want to understand the concepts very clearly for competitive exams. thank you sir for providing most difficult part of mathematics in such a simple way😊

  • @1965travels
    @1965travels 7 ปีที่แล้ว +2

    great video, nicely explained and very helpful in practice

  • @sudhapriyashrivastava6808
    @sudhapriyashrivastava6808 5 ปีที่แล้ว

    Dhanyawaad.Bahut acche se concept explain kiya hai aapne.

  • @kkomal100
    @kkomal100 10 ปีที่แล้ว +2

    hi pushpinder u r awesome!!! i used to think that probility sucks but after watching ur video it helped me a lot.

  • @ambatimallikarjunareddy1873
    @ambatimallikarjunareddy1873 8 ปีที่แล้ว +1

    sir....very much satisfied with your explanation.thank you

  • @soiefali4188
    @soiefali4188 9 ปีที่แล้ว

    Good one for beginners, learnt the basic, Thanks for uploading

  • @chintansolanki466
    @chintansolanki466 7 ปีที่แล้ว +1

    awesome video i have ever seen for clearing concepts deeply

  • @sahbarp
    @sahbarp 7 ปีที่แล้ว +1

    Solving Probability questions becomes easy now. Thank u

  • @PerfectScores
    @PerfectScores  11 ปีที่แล้ว +3

    Thank you for the support!

  • @sharma93anks
    @sharma93anks 10 ปีที่แล้ว +1

    superb teacher....concepts r clear to d exact mark...!!!!!!!!

  • @rajaryanshree1
    @rajaryanshree1 9 ปีที่แล้ว

    All are Amazing vids: Lucid and Engaging!!.. Your videos are like blessings for aspiring students, like me, for GRE GMAT OR CAT! Thanks a lot!

  • @ajambersahoo5146
    @ajambersahoo5146 7 ปีที่แล้ว

    Actually I had a fear for probability since plus 2.But I dared to take a chance for all the basics and it was the very 1st video I saw. And trust me not a single instance where I felt any single doubt. thanks a bunch

  • @anandsarma7770
    @anandsarma7770 8 ปีที่แล้ว +1

    Really was an amazing explanation and was very helpful......

  • @devrajparihar6618
    @devrajparihar6618 4 ปีที่แล้ว

    Thank you so much you made it so easy, it felt like spoon feeding the concepts, seriously hands down sir

  • @arpansimon9003
    @arpansimon9003 9 ปีที่แล้ว +1

    If someone is good at permutations and combinations, this is a piece of cake.

  • @piyushpathak5616
    @piyushpathak5616 9 ปีที่แล้ว

    Hey bro
    outstanding teaching abilities u have...great to watch ur video...
    just one question
    arethese question of cat paper level???
    hope u reply soon...
    best of luck (y)

  • @sangameshpatil1911
    @sangameshpatil1911 11 ปีที่แล้ว

    must watch videos before starting ur preparations ... will also be helpfull for revision before the exam ..thanx a lot

  • @manubelfort9383
    @manubelfort9383 10 ปีที่แล้ว

    CLASS BRO ,KEEP UP THE GD WORK GOING ON

  • @alirajalam4350
    @alirajalam4350 10 ปีที่แล้ว

    awesom sir wat a great solution ......................

  • @ChaitanyaVarmaD
    @ChaitanyaVarmaD 11 ปีที่แล้ว

    thank you very much for the detailed explnation;; i am gng to write gre ; and i had trouble with these ...nw every thng cleared.and all set to write the exam
    thank you.,.
    great applaud to you....CRYSTAL CLEAR

  • @dwaipayandattaroy9801
    @dwaipayandattaroy9801 9 ปีที่แล้ว

    Too good,PUSHPINDER SIR! that "exactly two" questions, .. i mean who are those minds behind to come up with these formulas, god bless them, though probability not my personal favourite, but you gave me the concepts, thank you.!

    • @dwaipayandattaroy9801
      @dwaipayandattaroy9801 9 ปีที่แล้ว

      Dwaipayan Dutta Roy ,SIR.., in the last question, what is the discerning factor, that I' ll not add the case difference, of two of them passing and the one who has not passed ! I mean A*B*C=0.046, AND not A*B+C=0.5, is it the word independently @ Perfect scores..?

  • @shravanikoushik4798
    @shravanikoushik4798 10 ปีที่แล้ว +1

    its an awesome video....u done the best.....thank u sir

  • @MrSrinath1
    @MrSrinath1 10 ปีที่แล้ว

    thank u soo much...as usually your way of explaination is so clear......

  • @bommakantiravi4788
    @bommakantiravi4788 9 ปีที่แล้ว

    nice explination of u tnqqqq...whery much

  • @kumaranand1078
    @kumaranand1078 8 ปีที่แล้ว

    i fed up with problems of certain technicalities of probability.thanx for clearing all.

  • @shankarkumarverma8649
    @shankarkumarverma8649 9 ปีที่แล้ว

    very valuable video on probability

  • @rakeshdubey1872
    @rakeshdubey1872 9 ปีที่แล้ว

    Very Informative. Thanks a lot

  • @vanditkunapareddi5368
    @vanditkunapareddi5368 5 ปีที่แล้ว

    Just the video I was looking for.

  • @rishabhwarankar4047
    @rishabhwarankar4047 8 ปีที่แล้ว

    great video sir.
    explained very easily
    thanks a lot

  • @francissantos617
    @francissantos617 9 ปีที่แล้ว

    interesting tutorial and i understand the pattern but why would you multiply the probabilities in the last two examples, why not add?...i dont get it

  • @shubhashishroy669
    @shubhashishroy669 4 ปีที่แล้ว

    upto the concept . This video is full of examples about daily life and really complex probability is easier by watching this.

  • @sajan84
    @sajan84 11 ปีที่แล้ว

    Thanks so much! Perfect little videos to strengthen ones concepts ....math does not come naturally to me... So videos like these keep me interested...

  • @mrigankroy
    @mrigankroy 8 ปีที่แล้ว +1

    The video is fabulous, quite frankly.But i could not understand the (1- not happening case), but yeah still a fantastic effort from your end.

  • @debleena94
    @debleena94 7 ปีที่แล้ว +2

    it's really awesome.I'm thankful..

  • @vireshkumar9241
    @vireshkumar9241 9 ปีที่แล้ว

    best videos....for learners...........thank u so much sir

  • @ravisolanki1979
    @ravisolanki1979 9 ปีที่แล้ว

    Great Video Pushpinder !!

  • @taiwoakinseye1030
    @taiwoakinseye1030 7 ปีที่แล้ว +1

    Great one. Thank you so much

  • @lixykattae2191
    @lixykattae2191 11 ปีที่แล้ว

    Dear Gill..I have a doubt at 36:47 . here Why can't we do like 1- probability of head does not happen times probability of tail does not happen....Hope you understand my doubt..Please help me .

    • @PerfectScores
      @PerfectScores  11 ปีที่แล้ว

      the question says that 3 coins are tossed we want at least one tail. Which can be done either by TTT + TTH + THH
      OR
      1 - TTT
      the way you are saying will not help to get to the answer

  • @onguardkk
    @onguardkk 11 ปีที่แล้ว

    AWSOME SIR.. OWE YOU A LOT FOR THIS

  • @kseniastoyan544
    @kseniastoyan544 6 ปีที่แล้ว

    Very nicely explained! The only one thing is - please evEnt. This mistake makes it hard to concentrate on the material.

  • @SameerAdhav
    @SameerAdhav 8 ปีที่แล้ว

    Thank you for the videos Sir.They are helping me a lot.
    what exactly are you saying at 40:50 about when to add and when to multiply.
    is it "Whenever a case ------ we need to add and within that case we need to multiply" ?

  • @x25852940
    @x25852940 4 ปีที่แล้ว

    So helpful! GMAT almost seems easy with your help!

  • @aniruddhchavda9573
    @aniruddhchavda9573 4 ปีที่แล้ว

    Really appreciate it. thanks a ton for this video

  • @lovelife289
    @lovelife289 7 ปีที่แล้ว +1

    nicely explained ..very helpful :)

  • @bhaskarjha4281
    @bhaskarjha4281 10 ปีที่แล้ว

    great presentation bro...its excellent

  • @shobhitha9694
    @shobhitha9694 8 ปีที่แล้ว +1

    a,b are two positive no.s such that a

  • @vasujhawar.6987
    @vasujhawar.6987 3 ปีที่แล้ว

    I would love to learn how to draw those amazing circles

  • @fadoobaba
    @fadoobaba 9 ปีที่แล้ว +20

    Having a samosa probability is 1, always :D

  • @Machettent
    @Machettent 8 ปีที่แล้ว

    Thk you sir. It's easy to follow you

  • @guru837
    @guru837 10 ปีที่แล้ว

    Nice Explanation. It really helped.

  • @karishmakapoor4285
    @karishmakapoor4285 8 ปีที่แล้ว +1

    Hello,
    Thank you so much for this video, I HATE maths, but the way you explained it made it so much interesting.
    I dint understand the coin problem but I hope to understand the same in other video.

  • @leekaru14
    @leekaru14 10 ปีที่แล้ว

    Very helpful! Very easy to understand! Thank you so much!

  • @anyeshabanerjee5500
    @anyeshabanerjee5500 6 ปีที่แล้ว

    amazing.. thanks for helping us out

  • @mayurkale009
    @mayurkale009 10 ปีที่แล้ว +1

    @Nipun Rohatgi: when AND is there you have to multiply. and when OR is there you have to add. Hope its clear now.

  • @tusharsharma5851
    @tusharsharma5851 8 ปีที่แล้ว +2

    in 2nd last slide in 1st problem can't we solve like 1- p(a) * p(b) * p(c) but by doing it i am getting answer 59/60

  • @cruiselover2006
    @cruiselover2006 10 ปีที่แล้ว

    The long question second to the end. I wanted to see if my answers were right. Was the probability of one target .43? Then the probability of two targets .15?

  • @lravikrish143
    @lravikrish143 8 ปีที่แล้ว

    super sir, is it standard elitmus xam,how to subscribe the vedios,

  • @kazmaz6107
    @kazmaz6107 9 ปีที่แล้ว +1

    Great explaination of probability
    Have one question though
    @37:53
    You are saying there are 3 coins but the question is " if coin to be tossed 3 times", from which I assume it's one coin being tossed 3 times and each time probability is 1/2.
    Plz explain if I'm wrong.

  • @drzlokita4life
    @drzlokita4life 10 ปีที่แล้ว

    For the question where you ask "what is the probability that exactly two of them hit the target?", can you do: 1- P(that exactly one of them hits) ? or would this be wrong?

    • @skariaparakal
      @skariaparakal 10 ปีที่แล้ว

      It would be wrong...because when we take 1-P(at least one of them hits) we take into account that
      a)two of them hit the target
      b)all three of them hit the target
      To get the right answer ,you subtract the answer u obtained with P(all of them hit the target )...I.e.1/60

  • @sanketgupta9289
    @sanketgupta9289 8 ปีที่แล้ว

    It was very helpful. Thank you so much

  • @Nawaz.110
    @Nawaz.110 6 ปีที่แล้ว

    sir respect for your hardwork

  • @hanamonafal3696
    @hanamonafal3696 4 ปีที่แล้ว

    This was really helpful. Thank you

  • @AvnishTiwariavnish
    @AvnishTiwariavnish 8 ปีที่แล้ว

    I came across a question in which its asking about probability of 1 digit number , among 0,1,2,3,4,5 , please tell me 0 is to be counted as a one digit number or not while forming sample space .

  • @ronitbhattacharya4720
    @ronitbhattacharya4720 7 ปีที่แล้ว

    in the second last question on what is the probability that exactly one of them hits the target, why can't we simply add all the three independent probabilities of hitting the target i.e (1/3)+(1/4)+(1/5)?

  • @adrianalvarado8245
    @adrianalvarado8245 10 ปีที่แล้ว

    Excelente!!! Muchas gracias. Saludos desde Quito, Ecuador

  • @tenzintsundue6474
    @tenzintsundue6474 8 ปีที่แล้ว

    loved the video, keep doing what you do (y)

  • @deepu19m
    @deepu19m 11 ปีที่แล้ว

    U saved my life sir thankq very much

  • @marcedarinho
    @marcedarinho 3 ปีที่แล้ว

    Thank you so much for uploading marvelous content. It has helped me a lot. I have a GRE question I'm not able to answer, because my solution isn't listed. I have the correct answer but I can't get to it. Can you please help? The problem: Five coins are tossed simultaneously, three of them are fair, while the other two are identically biased, being the probability of tails equal to 2/3. What's the probability of getting exactly 2 heads? My answer: 25/72, Correct answer: 19/72. Thanks in advance!

  • @kunjuraj1
    @kunjuraj1 10 ปีที่แล้ว

    really you are such very good person...........
    thank you so much ........
    you rally doing a great work ...........this video is really awesome.........

  • @mytwohands
    @mytwohands 11 ปีที่แล้ว

    Thank you so much for this! It was very helpful. It would moved at a very good pace.

  • @nehalunkad2935
    @nehalunkad2935 9 ปีที่แล้ว

    hello Sir, at 41:13 the first question isnt it 1- Allof them hit

  • @bimalsharma8550
    @bimalsharma8550 6 ปีที่แล้ว

    It helped me a lot.Thanks a lot sir!!

  • @btc1million
    @btc1million 9 ปีที่แล้ว

    Mr. Gill at 40:00 the answer to the second question is 0.4 or 4/10 and not 1/60.

    • @thinkoncemore
      @thinkoncemore 9 ปีที่แล้ว

      no answer is 1/60 can u explain how it is 0.4

  • @mustafafidvi5663
    @mustafafidvi5663 10 ปีที่แล้ว +1

    First of all i would like to thank you for such a great effort by uploading such videos and helping me to avoid coaching centres.
    In the second last question of yours
    "The probablity that none of them hits the target was 1/60 bt in the above statement "the probablity that all them will hit the target is 2/5.".
    why so?
    why not 1-1/60 sir?

    • @nga.nguyen
      @nga.nguyen 10 ปีที่แล้ว +3

      The two event "none of them hits the target" and "all of them hit the target" are not the only 2 possibilities, thus you cannot say that P(none) = 1 - P(all)
      Instead, there are many other possibilities, such as A happens but not B and C, B happens but not A and C, A and B happen but not C, .... so together, all of these possibilities add up to 1.
      Hope this helps :)

    • @scaramanga40
      @scaramanga40 10 ปีที่แล้ว +1

      the oppsite event of the probablity that none of them hits the target would be the probability that at least one of them hit the target
      so 1-1/60 is the probability that at least one of them hit the target

  • @nipunrohatgi91
    @nipunrohatgi91 10 ปีที่แล้ว +1

    Sir , I have a doubt in probability that when are we suppossed to add and when do we have to multiply.. plz help

  • @BhanuBharathiCreations
    @BhanuBharathiCreations 8 ปีที่แล้ว

    Thanks sir, really a helpful video.

  • @aditisrivastava1455
    @aditisrivastava1455 11 ปีที่แล้ว +1

    i m not getting why in the 2nd last question we are not finding 'probability that none of them hits the target' by subtracting 'probability of all of them hit the target' from 1...???
    why not the answer is 59/60 instead of 2/5...??? plzz help me.

  • @piyushjain7011
    @piyushjain7011 7 ปีที่แล้ว

    By the way great video very helpful !

  • @snehajoshi1130
    @snehajoshi1130 10 ปีที่แล้ว

    well in the question about municipal bonds and oil stocks, you have subtracted 7% from 35% however the question appears to me like 35% in MB (only) 18% in oil stocks (only) and 7% in both (MB & Oil stocks).

    • @kevingodec7932
      @kevingodec7932 10 ปีที่แล้ว

      well then the question appears wrongly to you.

  • @sidharthpanda8557
    @sidharthpanda8557 9 ปีที่แล้ว

    good explanation but the UI is a bit messy ,, try a white board or pen and paper.. thanks a lot for your efforts.

  • @piyushjain7011
    @piyushjain7011 7 ปีที่แล้ว

    just one question still not clear when to multiply and when to add in the complicated situations?

  • @srivallichintapalli768
    @srivallichintapalli768 10 ปีที่แล้ว

    after the explanation of independent nd dependent events u gave an example of solving a problem p(A)=0.4 p(B)=0.6 p(A^B)=0.24 why it cant be zero because one can solve the problem and the other cannot are they not independent events please give me the answer sir

  • @arunai4907
    @arunai4907 9 ปีที่แล้ว

    awesome sir thank youu soomuchh

  • @adityas6373
    @adityas6373 4 ปีที่แล้ว

    Between 101-350 there are - 350-101 =249-1 = 248 numbers since it’s from 101-350(not inclusive not mentioned)

  • @chrysas.1372
    @chrysas.1372 8 ปีที่แล้ว

    amazing teaching. thank you

    • @PerfectScores
      @PerfectScores  8 ปีที่แล้ว

      Thank you for your feedback!