I am a SAS professional with 3.5+ years of experience in Financial Services, Benefits Administration and HR analytics industries.
SAS/BASE, SAS/MACROS, SAS/SQL,SAS PROCs
Since count1 + 1 is a sum statement it can be read as ; retain count1 0 ; count1 = count1 + 1; since retain statement get its 0 value during compilation time I think answer is C. C. It is assigned a value 0 at compile time.
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SAS stores numbers in 8 bytes which can accurately hold around 16 digits including decimal places. Since SAS cannot precisely hold the 19 digits you are after you end up getting numbers slightly different to what you read. Try format 16.2.
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