math help! algebra 1 or 2

Question

Find the indicated probability.

12. P(A) = 3/5

p(Ā) +__

(the a has a line on top)

Find the indicated probability.

13. P(A) = 50%

P(B) = 50%

P(AorB) = ___

P(Aand B) = 0%

Answer 1

The answer in part 12 is 2/5.

The answer in part 13 is 100%

Answer 2

ind the indicated probability.

12. P(A) = 3/5

p(Ā) +__

(the a has a line on top)

=>

p(Ā) = probability of A comliment

p(Ā) =1 - P(A)

= 1 - 3/5

=2/5

13. P(A) = 50% = 0.5

P(B) = 50% =0.5

P(AorB) = ___

P(Aand B) = 0% =0.0

=>

If Events A and B are independent, the probability that either Event A or Event B occurs is:

P(A or B) = P(A) + P(B) - P(A and B)

= 0.5 +0.5 -0

= 1