How many statements are in the following PROC PRINT step?
Correct Answer: C
In the provided image of the SAS code for the PROC PRINT step, the following statements are present: * proc print data=sashelp.cars; - PROC PRINT step beginning * var Make Model MSRP MPG_City MPG_Highway Horsepower Weight; - VAR statement to specify variables to print * format Weight comma8.; - FORMAT statement to apply a format to a variable * The final run; statement which would be necessary to execute the PROC PRINT step is not visible in the image, but it can be inferred to be there since every PROC step must be ended with a run; or quit; statement. Thus, there are four statements related to the PROC PRINT step. References: * SAS 9.4 Language Reference: Concepts, "PROC PRINT" * SAS documentation on "VAR Statement" and "FORMAT Statement"
Question 7
Given the input data set WORK. GR_ANS with two character variables: The following SAS program is submitted: Which report is created?
Correct Answer: D
The SAS program provided includes a PROC FORMAT step that defines a numeric format called Syn and applies this format to the variable answer in the PROC PRINT step. The format maps the value '0' to 'No', '1' to 'Yes', and all other values to 'Unknown'. However, there is a syntax error in the PROC FORMAT step: it uses a dollar sign before Syn, which is used to indicate character formats, but the format is defined for numeric values (0 and 1). Therefore, when applying this format to the answer variable in PROC PRINT, it should not have a dollar sign, it should be format answer Syn.; instead of format answer $yn.;. The correct output based on the given code, assuming the error with the dollar sign is corrected, would be as follows: * For numeric values 0 and 1, 'No' and 'Yes' would be displayed, respectively. * For any other numeric value, 'Unknown' would be displayed. * For character values, the format would not apply and the actual values would be displayed. Given that the values in the 'answer' column are numeric, the program will format them according to the defined Syn format. Thus, the report corresponding to Option D, which shows numeric values unformatted, would be the one created. This indicates that the format was not applied because of the syntax error with the dollar sign. References: * SAS 9.4 documentation for the FORMAT procedure and statement: SAS Help Center: PROC FORMAT
Question 8
Which PROC MEANS statements specifies variables to group the data before calculating statistics?
Correct Answer: A
In the context of the PROC MEANS procedure in SAS, the CLASS statement is used to specify categorical variables whose unique values group the data before calculating statistics. This allows PROC MEANS to calculate statistics like the mean, sum, or standard deviation for each class or group of data defined by the CLASS variables. The CLASS statement works as follows: * class variable-list; specifies one or more variables to define groups for analysis. * When used, PROC MEANS computes the requested statistics for each level of the variables listed, which can be very helpful for analyzing how groups compare across different statistics. The other options are not used in the PROC MEANS procedure to specify grouping of data: * B. GROUP is not a valid statement in PROC MEANS. * C. SUMBY is not a valid statement in SAS. * D. VAR is used in PROC MEANS to specify the analysis variables for which statistics are to be computed, not to group the data.
Question 9
Given the following code: Which variables are created with the BY statement?
Correct Answer: A
Question 10
Given the input data set WORK.RUN: Given the following DATA step: What is the correct output data set WORK.RUN2? A) B) C) D)
