sentences:  Each time, before it is tossed, you can choose to stop tossing it and get paid (in dollars, say) the average number of heads observed.You wish to maximise the amount you get paid by choosing a stopping rule.If "X""i" (for "i" ≥ 1) forms a sequence of independent, identically distributed random variables with Bernoulli distribution
  and if
  then the sequences formula_58, and formula_59 are the objects associated with this problem.