Lecture 4.9 - Association between categorical and numerical variables

Sdílet
Vložit
  • čas přidán 5. 09. 2024

Komentáře • 41

  • @efficaciousuave
    @efficaciousuave Před 3 lety +55

    finally.... last subject. Last lecture...last week...last assignment.......now i can take a break before i resume revision for the qualifiers

    • @debarshiroy2939
      @debarshiroy2939 Před 2 lety +2

      exactly the same for me too, this is indeed my last vdo that im watching for qualifier level

    • @efficaciousuave
      @efficaciousuave Před 2 lety +1

      @@debarshiroy2939 All the best 👍🏻👍🏻👍🏻

    • @debarshiroy2939
      @debarshiroy2939 Před 2 lety +1

      hey can you tell me how to revise properly for the exam. i know there is a lot of content to cover. ive made notes, yes, but even that ia long🙄

    • @efficaciousuave
      @efficaciousuave Před 2 lety +6

      @@debarshiroy2939 for english go through the relevant parts from better english book. for maths and stats revise the same questions for which you have video solutions available, no need to practice extra questions. just revise the ones already done in revision videos, live interaction videos, solve with me videos and so on. just make sure you cover all the video materials provided by the IIT. don't skip any. and CT is logic and reasoning based no mugging required there so thats on you.

    • @debarshiroy2939
      @debarshiroy2939 Před 2 lety +2

      @@efficaciousuave CT is pure logic. but the prblm is with maths. it is the hardest of all 4.the assignment ques are really tough. so if that kind of ques come again in the exam, i dunno what to do😶

  • @shivanshguptakhard3447
    @shivanshguptakhard3447 Před rokem +27

    I m watching this for the first time 2 days before qualifiers 😎

  • @shivanshguptakhard3447
    @shivanshguptakhard3447 Před rokem +8

    16:40 why there is n-1 instead of n

  • @Farhan-ts1sd
    @Farhan-ts1sd Před rokem +15

    All the Best for Qualifiers !

  • @mysticstranger666
    @mysticstranger666 Před 2 lety +7

    I would like to voice a concern. She says that y will be the two values of 0 and 1 and x will be the numerical values. But isn't it supposed to be the reverse. The x axis would reflect the two dichotomous values and the y axis would reflect the numerical values. Agreed it doesn't effect the point bi serial correlation, but still.

    • @lack5859
      @lack5859 Před 2 lety +1

      It does effect "the formula doesn't makes sense if "x represents marks",. I was thinking the same thing ~ scratching my head

    • @ZAKIY-kg4zl
      @ZAKIY-kg4zl Před 10 měsíci

      The X denotes the numerical variables and Y denotes the gender to compute Y0 and Y1. It is not specifically saying X-axis and Y-axis @@lack5859

    • @rawfiul.
      @rawfiul. Před 6 měsíci

      @@lack5859
      yes i think the graphical representation messed us up, she should have
      used x axis for numerical and y for categorical. We should not be
      thinking of best line fit and positive negative slopes when dealing with
      point biserial correlation, they have different domains

  • @suryadarshankandari7903
    @suryadarshankandari7903 Před 2 lety +8

    standard deviation in the formula is that sample or population

  • @canyamansanem5854
    @canyamansanem5854 Před 10 dny

    Is quiz is mandatory for diploma exam

  • @DashingData66666
    @DashingData66666 Před 3 měsíci +5

    why male as zero and female has 1
    this is racisims