Events a and b are disjointed. p(a) =1/10 p(b) =3/10 find p(a or b).

1.3/10
2.3/100
3.3/20
4.2/3

step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square