Question

Probably of an event E+probability of an event not E=​

Answer 1

answer is 1

because both are the part of single event

Answer 2

Answer

Probably of an event E+probability of an event not E=​1

probability is actually a fraction i.e out of a whole what part is possible

then 'the not' i.e the opposite will fill the rest of the whole

thats why probality is always ≥0 and≤1

1 means its a sure event

0 means it is an impossible event

hope it helps........