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Most difficult question in s1? Lets solve
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You have s1 in the morning?duude my paper is at 10 am! i don't have time to wake up and practice :/ what ever i can finish now is all the revision i can do at the moment its 9:40 pm i dont have time
bad idea! you need a fresh mind to do s1! Especially the latest papers. Requires a lot of thinking!is anyone staying up the night?
do u hv any???Most difficult question in s1? Lets solve
I do m2bad idea! you need a fresh mind to do s1! Especially the latest papers. Requires a lot of thinking!
it will be 2c1/7c1cudnt do the probability one sorry im getting 2/49 as ans
u mean that they give to me a large fixed number of trials and i need to find the probability of a smaller number so we use in this case continuity correction ??when lets say, u are given...a fixed nmber of trial eg a dice is thrown 200 times.... use a suitable approximation to find the probability that more than 60 times it landed on a 3..... or when u hv all the binomial related data ie; number of trials....probability of success and failure...and u need to find the probability of a large event.......
u mean that they give to me a large fixed number of trials and i need to find the probability of a smaller number so we use in this case continuity correction ??
thats continuity correction its being discussed all over the last few pages its always applied when you convert binomial into normal usually when its written in the question use suitable approximation then its appliedin normal distribution if for example its given to find the probablity of X>35 and mean = 30 and variance = 1.5. sometimes it takes it as 35-30/1.5 and sometimes 35.5-30/1.5 .. why is that ??
the values are just random.
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?http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_qp_61.pdf
Q1 look at this question.... u hv fixed nmber of trial.... probability of success and failure....all the data fr binomial...u need to find the probability for more than 210....u jst cant add 0 to 210 ways.....an approximation is needed....hence u cnvrt frm binomial to normal.....
you did not mention the year?guys can any of u plx help me with q.5 part (i)
paper 61
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