Question

For an event E ,P(E) +P not(E) = q , then the value of q²-1 is
(a) 4
(b)-1
(c) 1
(d) 0

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Answer 1

Step-by-step explanation:

The answer is 1

option c is the right answer

Answer 2

Answer:

D

Step-by-step explanation:

Q=1

Q^2-1= 1^2-1 =0