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Question

How can we identify and sort out questions from different topics of this chapter probability? (Board exam purpose)
 


Solution

Conceptual clarity is very important in this chapter. .
Be careful about cases of with replacement and without replacement.
In Bayes’ Theorem, carefully identify E1, E2, E3…. and A and then P(E1), P(E2), ….., P(A/E1), P(A/E2) etc.Your target time for first revision should be 7-8 hours appx for the six exercises (13.1 to 13.5) and the Misc exercise and also little bit of previous years’ questions from reference book.

Some important questions from NCERT are as follows:

Ex 13.1    example 7    Question 5, 10, 12, 15, 17
Ex 13.2    examples 9, 11, 13, 14    Questions 4, 6, 9, 13, 14, 16
Ex 13.3    examples 16, 18, 20, 21    Questions 1, 3, 4, 5, 7, 10, 12, 13 (important exercise)
Ex 13.4    examples 24, 25, 26, 29    Questions 5, 9, 11, 13, 15, 17
Ex 13.5    Examples 30, 31    Questions 4, 6, 8, 10, 13
Misc 13    examples 35, 36, 37    Questions 2, 5, 6, 7, 9, 11, 13, 14, 16

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