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SAS Practice Test

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Questions and Answers

A dollar sign ($) on an INPUT statement in SAS means that:

the variable has some missing values.

the variable has only numeric values.

the unit of measurement is dollars.

the variable may have character values. (correct)

Which of the following statements is true about SAS?

It is primarily used for web development.

It is a programming language used for statistical analysis. (correct)

It is only compatible with Windows operating systems.

It is primarily used for graphic design.

The DBMS keyword in importing external files is used to

To include variable names from the first row of data.

To import a specific sheet from an excel workbook.

To specify the type of data to import. (correct)

To overwrite an existing SAS data set.

Which keyword is used to specify path where data file is saved?

INFILE Signup and view all the answers

Which of the following is a SAS syntax requirement?

End each statement with a semicolon. Signup and view all the answers

In the following code snippet, Which dataset is considered the input

dataset? Data a; Set b; Run;

b Signup and view all the answers

In the following code snippet, Which dataset is considered the output dataset? Data a; Set b; Run;

a Signup and view all the answers

Which of the following is not a valid type of library in SAS?

System library Signup and view all the answers

What is the primary purpose of the SET statement in SAS?

To read data from existing datasets Signup and view all the answers

What is the primary purpose of the Data statement in SAS?

To define the beginning of the data step. Signup and view all the answers

Study Notes

SAS Basics

A dollar sign ($) on an INPUT statement in SAS is used to specify the informat for numeric data.

Importing External Files

The DBMS keyword is used to import external files.

Specifying File Paths

The PATH keyword is used to specify the path where the data file is saved.

SAS Syntax Requirements

A semicolon (;) is a SAS syntax requirement.

Understanding Data Steps

Data Step Example 1

In the code snippet Data a; Set b; Run;, dataset b is considered the input dataset.

Data Step Example 2

In the code snippet Data a; Set b; Run;, dataset a is considered the output dataset.

Library Types

There is no such thing as a "permanent" library in SAS. Libraries can be either temporary (WORK) or permanent ( LIBNAME).

SET Statement

The primary purpose of the SET statement in SAS is to read in existing data.

DATA Statement

The primary purpose of the Data statement in SAS is to define a new dataset.

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