Two dice are tossed once. What is the probability of getting an even number on the first die or a total sum of 9 on the two dice?	Choose the most appropriate option:
A) 4/9  B) 5/9  C) 7/18  D) 11/18  E) 7/36
There are 36 possible outcomes for two dice.   The number of outcomes with an even number on the first die is 3*6= 
<gadget id="calculator">3*6</gadget>
<output>18</output>
18.   The number of outcomes with a sum of 9 is 4.   We need to subtract the outcomes that have both an even number on the first die and a sum of 9 because we have counted those outcomes twice. This number of outcomes is 2.   The number of outcomes with either an even number on the first die or a sum of 9 is  18+4-2= 
<gadget id="calculator"> 18+4-2</gadget>
<output>20</output>
20.   The probability is 20/36=5/9.   The answer is 5/9.
<result>B</result>
Two dice are tossed once. What is the probability of getting an even number on the first die or a total sum of 9 on the two dice?