PROBABILITY (LECTURE 1)

CLASS 10 - PROBABILITY
LESSON-1, DAY-1





Please Click ➤to recap what you already know about probability.

Please write the following learning outcomes in your note books

I will be able to 

  • Generalize that nearly everything is subject to uncertainty
  • discover that probability theory can help me :

  1. Manage Uncertainty
  2. Improve my decision making
Please Click ➤to see how Statistics is SO important in life.


πŸ’“


Today, situation across the globe is so uncertain.
Covid-19 has made our days and our lives uncertain.
In such a situation you may adopt either of the following thought processπŸ‘‡

Please write this word in your diary : 
dichotomous : (of branching) in which the axis is divided into two branches.
Please Click ➤ for an example

Please write in your note books πŸ‘‡

To build 
this probabilistic perspective, 
you need 
appropriate language 
and 
terminologies. 
Please write and learn 
the content shared through 
few images that follow.....

Please write in your note books πŸ‘‡

Please write in your note books πŸ‘‡

Please write in your note books πŸ‘‡


Please write in your note books πŸ‘‡

Please write in your note books πŸ‘‡

{Kindly use Probabilistic Perspective to think about the following experiments}

Q1) Experiment: A driver attempts to start a car. 
        Sample Space : {The car starts, The car does not start }
        Are these equally likely outcomes ?
A1) NO πŸ™†
      because , 
        the car will a start if number of factors are in place such as (key is available, the person knows how to start, enough petrol, working engine, battery ok, etc..)
        the car will not start even if one of the factor is out of place

Q2)  Experiment: A player attempts to shoot a basket ball. 
        Sample Space : {She shoots, She misses}
        Are these equally likely outcomes ?
A2) NO πŸ™†
      because , 
         she shoots if number of factors are in place such as (her distance from the basket, the force used to throw, the angle at which it is thrown, another player's hindrance in between, her expertise, etc..)
        she misses even if one of the factor is out of place
{So do not Blame things to luck in your next game on the field / court}

Q3)  Experiment: Answer a true or false question in the paper. 
        Sample Space : {Get full marks, Get no marks}
        Are these equally likely outcomes ?
A3) Yes 
      because , the question has been framed like that


Home Work : Ex. 15.1 - Q1

That's all for today
Keep Safe !
Good Morning and Thank you Boys 😊

Comments

  1. Ma'am I do not understand what are elementary elements.
    Are heads and tails two outcomes?

    ReplyDelete
    Replies
    1. Ma'am does it mean getting only one outcome? Either heads or tails?
      Ma'am could you please give an example of case that does not involve having elementary element? i.e., a case where there are two outcomes simultaneously?

      Delete
    2. Elementary event=an event having only one outcome of the experiment.
      eg: A bag contains an orange, an apple and a mango. Joe takes out a fruit from the bag without looking into it. What is the probability you takes out the (i) Mango? (ii) an apple?
      (iii) an orange?

      The number of possible outcomes = 3
      (i) the number of outcomes favourable to the event Mango = 1
      P(mango)= 1/3

      Similarly, P(apple) = 1/3
      P(orange) = 1/3.

      these are elementary events.

      Delete

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