Question

The probability of an event occurring is 0.7. The probability of that event not occuring is __. Please give the decimal value.

Answer 1

The probability of an event occurring can be represented as P(E) and the event not occurring as P($\overline{E}$).

$\therefore$ P($\overline{E}$) = 1 – P (E) = 1 – 0.7 = 0.3.