1 / 8

Maths

Probability

komalmalhotra
Download Presentation

Maths

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1.  The word probability is used to express the favourable outcomes of any event.  Example:- 1) Most probably it will rain today. 2) I doubt that he will pass the test. These words show the probability of occurrence of an event.

  2. P(E) = No. of favourable outcomes Total no. of outcomes Example:- When one coin is tossed, find the probability of getting a head or tail. No. of favourable outcomes:- 1 Total no. of outcomes:- 2 P(E) =1 2

  3.  Random Experiment :- An experiment in which exact outcomes cannot be predicted.  Trial:- Trial means performing a random experiment.

  4.  The collection of one or all possible outcomes in a probability is known as event.  When a dice is thrown one time, find the probability of getting even number ?  Event :- { Dice is even } = { 2, 4, 6 }

  5.  The set of all possible outcomes of a probability experiment is known as sample space.  Sample space of a dice :- {1,2,3,4,5,6}

  6. When a dice is thrown, find the probability of getting even no. Event of an even no. :- {2,4,6,} Sample space of a dice :- {1,2,3,4,5,6 } P(E) = No. of favourable outcomes Total no. of outcomes P(E)= 3 6

  7.  Q1:- What is probability ?  Q2:- What are trial and events ?  Q3:- What is the formula of probability ?

  8.  Q1:- If there are 30 students in a class. There are 20 girls and 10 boys. What is the probability of a girl to get first position in the class ?  Q2:- Write down the sample space of the event tossing 2 coins simultaneously.

More Related