spinsterette
""A fellow employee told me that it is best to wait at the end of the queue, as it was less likely to pick a black marble. ""
If that fellow told you this , then there is your answer .
My answer was the more whites you have, the less to choose a black .
Example : 1/6 ...2/12....3/18 ...4/24....5/30....6/36.....7/42...8/48...ect.
