Set A = {2,3,4,5}
Set B = {4,5,6,7,8}
Two integers will be randomly selected from the sets above, one integer from Set A and one integer from Set B. What is the probability that the sum of the two integers will equal 9?
Pick one:
A) 0.20  B) 0.25  C) 0.30  D) 0.33  E) 0.39
Explanation :   Total numbers in n(S)=4×5=20.   =&gt;n(E)=4. [(2,7), (3,6), (4,5), (5,4)].   The required probability :-   =&gt;P(E)=n(E)/n(S).   =&gt;4/20.   =&gt;0.20.   0.20nswer : 0.20
<result>A</result>
Set A = {2,3,4,5}
Set B = {4,5,6,7,8}
Two integers will be randomly selected from the sets above, one integer from Set A and one integer from Set B. What is the probability that the sum of the two integers will equal 9?