What does the following code do? PROC MEANS DATA= ORGANIZATION(WHERE=(REGION IN('WESTERN','SOUTHERN') and SUBSTR(RATE_SCHEDULE,1,2) = 'E1')) MAXDEC = 0 MEAN SUM NONOBS; VAR TOTREV; CLASS REGION RATE_SCHEDULE; run;

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  1. Calculate the mean total revenue classified by REGION and RATE_SCHEDULE, but only for the WESTERN and SOUTHERN REGIONS, and only for those two regions whose values of RATE_SCHEDULE start with the string “E1.”

  2. Displays the number of observations(records), mean and total revenue classified by REGION and RATE_SCHEDULE, for the WESTERN and SOUTHERN REGIONS, and only for those two regions whose values of RATE_SCHEDULE start with the string “E1.”

  3. Calculate the mean total revenue classified by REGION and RATE_SCHEDULE, for all the regions except the WESTERN and SOUTHERN REGIONS, and only for those two regions whose values of RATE_SCHEDULE start with the string “E1.”

  4. Displays the Rate Schedule of the WESTERN and SOUTHERN REGIONS where variable TOTREV is an integer.

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Correct Option: A

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