If the argument below is valid, name which of the four valid forms of argument is represented. If it is not valid, name the fallacy that is represented.

If I sing in the shower, then I will not be overheard while singing.
I was not overheard while singing.
Therefore, I sang in the shower

Question

If the argument below is valid, name which of the four valid forms of argument is represented. If it is not valid, name the fallacy that is represented.
 
If I sing in the shower, then I will not be overheard while singing.
I was not overheard while singing. 
Therefore, I sang in the shower

zarkon · Answer

invalid.  

not sure of the name of the fallacy...but the converse of a statement is not necessarily true