If i have a uniformly distributed random variable in [0,1), how can i modify it (only using arithmetic expressions) s.t. it is -1 with probability 1/2 and 1 with probability 1/2?
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If i have a uniformly distributed random variable in [0,1), how can i modify it (only using arithmetic expressions) s.t. it is -1 with probability 1/2 and 1 with probability 1/2?
If floor (or conversion to nearest integer below x) is OK:
With rounding to the nearest integer: