Question

ii. The probability for any event being successful is 0.55 then probability of its failure is
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Answer 1

Answer:

The probability of its failure is =1-0.55

=0.45

Answer 2

Answer:

The positive probability and negative probability are complementary, so the probability of something happening plus the probability of something not happening is 1.

So

Let E be the event that it is successful and E2 be the event that it is a failure.

Hence,

P(E) + P(E2)= 1

0.55 + P(E2) = 1

P(E2)= 1-0.55

P(E2)= 0.45

Thus, probability of it being a failure is 0.45

Step-by-step explanation: