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Mathematics: Post your doubts here!

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q3.....is easy......draw a probaility distributio table and then bingo....obviously u cant use np here for expevcctation cos its not a binomial case
 
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ahaaaaaaaaaaaaaa thank u so much now i understood so we use the cc when u need to find the probability of a smaller number in relative to a larger fixed number am I right?

provided u r doing the question in binomial before...
 
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good luck for all of us in achieveing the best marks in today exam, it was normal to easy exam but please no one review here the answers so we don't discover silly mistakes :D
 
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good luck for all of us in achieveing the best marks in today exam, it was normal to easy exam but please no one review here the answers so we don't discover silly mistakes :D

yep i agree... plzzz no discussions. ppr is done now. cant be changed so its no use.:)
 
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What do you think would be the minimum marks for an A* and an A, overall? (p1, m1, p3,s1)
(pi and M1 was 94/125 for an A last year)
 
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