Sign up now
to enroll in courses, follow best educators, interact with the community and track your progress.
Download
Probability Basics Part - 1 (in Hindi)
1,017 plays

More
In this lesson we will see basic terminalogy of probability....

Any Time Padhai Academy
Welcome to Any Time Padhai academy! Awesome content for JEE & NEET | Founded by Vineet Khatri Sir | 33 mn views & 3.5 lac students

Unacademy user
very useful material, thank you very much mam
your welcome... will upload other topic soon and forget to rate review and recommend and share these videos
Prasanna kumari
a year ago
thank you mam
Prasanna kumari
a year ago
mam please explain research topics and psychology topics
sure but first I have commitment to complete philosophy.... hope you'll understand...
sure but first I have commitment to complete philosophy.... hope you'll understand...
sure I'll....but first I have to complete philosophy...
sure I'll....but first I have to complete philosophy...
Prasanna kumari
a year ago
thank you mam but less time more learning syllubus,so i am asked mam
it's ok
thank u so much sir and sir pls vector and 3d next
sir iit jee ja question k upor video banaya
sir more questions please.......
  1. Any Time Padhai Academy Probability Important terminology (part-1)


  2. (i)Random experiment: It is a process which results in an outcome which is one of the various possible outcomes that are known to us before hand e.g. throwing of a die is a random experiment as it leads to fall of one of the outcome from (1, 2, 3, 4, 5, 6). Similarly taking a card from a pack of 52 cards is also a random experiment. (ii)Sample space: It is the set of all possible outcomes of a random experiment e.g. (H, T is the sample space associated with tossing of a coin. In set notation it can be interpreted as the universal set.


  3. Example # : Write the sample space of the experiment 'A coin is tossed and a die is thrown, Solution : The sample space S = {H 1, H2, H3, H4, H5, H6, T1, T2, T3, T4, T5, T6). Example # : Write the sample space of the experiment 'A coin is tossed, if it shows head a coin tossed again else a die is thrown Solution The sample space S (HH, HT, T1, T2, T3, T4, T5, T6)


  4. Find the sample space associated with the experiment of rolling a pair of dice (plural of die) once. Also find the number of elements of the sample space. Example # : 2 4 6 2 (2,1) 2, 2) 2, 3) 2,4) (2, 5) (2, 6) 3 (3, 1) (3, 2) (3, 3) 3,4) (3, 5) (3, 6) 4 6 6,1) (6, 2) 6, 3) 6,4) 6,5 6, 6) Figure Number of elements (outcomes) of the above sample space is 6 x 6 i.e., 36


  5. (ii) Event It is subset of sample space. e.g. getting a head in tossing a coin or getting a prime number in throwing a die. In general if a sample space consists 'n' elements, then a maximum of 2 events can be associated with it (iv) Complement of event The complement of an event 'A' with respect to a sample space S is the set of all elements of 'S which are not in A. It is usually denoted by A', A or AC


  6. (v) Simple event If an event covers only one point of sample space, then it is called a simple event e.g. getting a head followed by a tail in throwing of a coin 2 times is a simple event. (vi) Compound event When two or more than two events occur simultaneously, the event is said to be a compound event. Symbolically A B or AB represent the occurrence of both A & B simultaneously. Note "Au B" or A + B represent the occurrence of either A or B.


  7. Example # : Write down all the events of the experiment tossing of a coin. Solution : S-{H, T} the events are , {H), (T), {H, T} Example # : A die is thrown. Let A be the event' an odd number turns up, and B be the event'a number divisible by 3 turns up'. Write the events (a) A or B (b) A and B A Solution : [1, 3, 5), B 3(3, 6} A or B AuB (1, 3, 5, 6) A and B An B(3)


  8. Any Time Padhai Academy . Follow ATP on Unacademy platform Quality Content just like KOTA classroom - Click on Enrol Button so that you do not miss any updates regarding the course . Rate & Review Thank you guys appy Learning!!