Question

If the probability that an event occurs is 0.5 ​, the probability that the event does not occur is

Answer 1

Answer:

0.5

Step-by-step explanation:

P(that an event occurs) = 0.5

P(that an event does not occur) = 1 - P(that an event occurs)

                                                     = 1 - 0.5

                                                     = 0.5

Answer 2

Answer:

It is also 0.5

Step-by-step explanation:

From independent events:

${ \bf{p + q = 1}}$

p is probability for an event to occur (success).

q is probability for an event not to occur (failure).

${ \tt{0.5 + q = 1}} \\ { \tt{q = 1 - 0.5}} \\ { \tt{q = 0.5}}$