Certification Prep Programming Scenario Question

[cranberry]

I am going through the programming scenario questions in the Certified Specialist Prep Guide. In one of the scenarios it says, "remove observations with X variable values greater than or equal to 70". I interpreted that as keep all observations of that variable with a value of less than 70 (not inclusive). Why in the solution section does it say "where X <=70"? Shouldn't it be "where X<70" because the instructions said to remove values greater than OR EQUAL to 70?

I am using X variable instead of the actual variable since I don't know if I can say the actual problem. 

[Mark2010]

Hello,

Apologies for the error. This is addressed in the 'Content Updates', available at: SAS Books | SAS Support on the link for the prep guides.