Current with an ionic solution
No offence to you (certainly to the original author of this question), I call such home-work questions such as garbage in-garbage out type questions. No wonder a student will be confused if they see such open ended questions. The reason is that the author is not telling you or us of 2.0 grams of what?
Even if we assume it was 2 grams of salt, several things can affect the measured current
(1) What are the electrode areas?
(2) What are the electrodes made of?
(3) What is the distance between the electrodes?
Last but not the least, the identity of the salt matters a lot. Did both groups use the same salt? Monovalent, divalent, etc