In SAS

Question: Here is the scenario: You are a new SAS data analyst recently hired by an outcomes research group within the University of Louisville Department of Biostatistics and Bioinformatics. The dataset has one million patient records and reflects 7,992 hepatitis C unique patients. The variables in this data set are PT_ID (a unique patient ID) . EVENT_DATE . GENDER (Male or Female) . AGE (age on the EVENT_DATE. Variable AGE is in two decimal years. Some data are missing.) HEPC(Type of hepatitis C virus) For the practice, you are asked to fill the missing values of AGE and GENDER for the first seven records of data, as given below: PT_ID EVENT_DATE AGE GENDER HepC A11 12/10/2003 65.00 Male Acute A11 10/15/2006 Chronic A11 07/20/2010 Chronic CO2 05/11/2006 71.00 Unspecified CO2 10/01/2006 FEMALE Unspecified CO2 07/03/2012 Unspecified C02 05/08/2015 Chronic