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wu :: forums    riddles    putnam exam (pure math) (Moderators: Icarus, towr, SMQ, Eigenray, william wu, Grimbal)    Probably ...oops Probability Zone « Previous topic | Next topic » Pages: 1  Reply Notify of replies Send Topic Print    Author  Topic: Probably ...oops Probability Zone  (Read 990 times) kathuria Guest Probably ...oops Probability Zone   « on: Dec 23rd, 2005, 5:07am » Quote Modify Remove On an average a country faces draught once in every 10 years ... Whats the probability that the same country will not be facing draught in next 30 years....?   IP Logged SMQ wu::riddles Moderator Uberpuzzler     Gender: Posts: 2084 Re: Probably ...oops Probability Zone   « Reply #1 on: Dec 23rd, 2005, 6:27am » Quote Modify Wouldn't it just be (9/10)^30 ~= 4.24%?   --SMQ IP Logged --SMQ Pages: 1  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------  - easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs => putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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