GMAT Abstract Data Sufficiency Problem

GMAT Abstract Data Sufficiency Problem

Abstract Data Sufficiency Problems & Scenarios Hi guys! Abstract data sufficiency problems tend to really lend themselves to running scenarios – It doesn’t matter if it’s an abstract inequality or a number theory problem, really anytime you’ve...
Standard Deviation – Clustering (Birds) Problem

Standard Deviation – Clustering (Birds) Problem

Hey guys! Today we’re going to take a look at a DS problem that is a skills problem, focused on GMAT standard deviation. Standard Deviation & Variance What they’re asking here is do we have enough information to compute a standard deviation? It’s...