Math CentralQuandaries & Queries


Question from Christopher, a student:

Jack tosses a coin 30 times. How many times would you expect the coin to land tails side up?

Hi Christopher,

If this is a fair coin then the probability that it lands tails on a toss is one half. Hence if I toss the coin a number of times I would expect that it will land tails on half of the tosses.


About Math Central


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
Quandaries & Queries page Home page University of Regina PIMS