Tag: Combinatorics

Correct mathematics but still strange
Imagine you had an ‘unfair’ coin that returned heads 70% of the time and tails 30% of the time and you played this game with a friend (who knows that the coin is ‘bent’): You each put £1 in as stake money every round and then toss the coin four times. If it comes up […]

So, how good are the English premiership top seven?
oops: got the maths wrong first time – this is the corrected version Last weekend was said to be one of the worst in the history of English bookmakers (I know, your heart bleeds) as for the first time ever all seven top teams in the English premiership won – so ensuring a lot of […]

The binomial distribution, part 2
(Part 1 is here – these notes are to assist me, rather than contain any real news!) So, if the probability that an event will happen to a single entity in a unit of time is and the probability it will not happen is , what is the probability that a large number of events, […]

Wikistyle maths
Wikistyle cooperative mathematics can work for even the highest levels of maths research, reports (subscribers only) the New Scientist (subscription offer) – challenging the idea that maths advances can only come from tortured geniuses working alone. The system, called Polymath (there is a blog about it here) was tested out on the “density HalesJewett theorem” […]