If one can represent the whole group?

#1
I have qualitative drug susceptibility data (either "resistant" or "sensitive") for a set of bacterial strains for 6 drugs of the same class - i want to know if one of these drugs could represent the whole group. Which statistical method should be used to analyse this?
 

hlsmith

Less is more. Stay pure. Stay poor.
#2
Can you provide a snippet of your data (fictitious or not), so we can better understand what you are writing about.

Thank you.