Exam Code : A00-231
Exam Name : SAS Certified Specialist: Base Programming Using SAS 9.4
Vendor Name :
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SAS Certified Specialist: Base Programming Using SAS 9.4
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It provides counts and percentages of the occurrences of values within a variable, allowing for the analysis of categorical data and the identification of patterns.
to be
L
I
V
L
Ans
When using the FORMAT statement in SAS, which option specifies the f applied to a variable?
ENGTH NFORMAT ALUE ABEL
wer: C
anation: The VALUE option in the FORMAT statement is used to sp ormat to be applied to a variable. It defines the format of the variable' es for display or output.
ormat
Expl ecify
the f s
valu
The following SAS program is submitted: data work.sales;
set work.revenue;
by product_category;
if first.product_category then category_count = 1;
else category_count + 1; run;
What is the purpose of the above program?
To create a new data set named 'sales' by merging two existing data sets.
sort the observations in the data set 'sales' based on the values of uct_category'.
remove observations from the data set 'sales' based on the values of uct_category'.
wer: B
anation: The purpose of the program is to calculate the total count of rvations in the data set 'revenue' for each unique value of uct_category' and store it in the variable 'category_count' in the data s s'. The program uses the BY statement to specify the variable
uct_category' as the grouping variable. The IF-THEN statements are u crement the value of 'category_count' for each observation within a gr
llows for the calculation of category-wise counts.
To calculate the total count of observations in the data set 'revenue' for each unique value of 'product_category' and store it in the variable 'category_count' in the data set 'sales'.
To
'prod
To
'prod Ans
Expl obse
'prod et
'sale
'prod sed
to in oup.
This a
Which SAS statement is used to assign a value to a macro variable?
LENGTH
FORMAT
RETAIN
%LET
Answer: D
AS, which statement is used to end the current iteration of a DO loop a the next iteration?
EAVE ONTINUE REAK EXT
wer: A
anation: The LEAVE statement in SAS is used to end the current itera O loop and begin the next iteration. It allows you to skip the remaini
Explanation: The %LET statement in SAS is used to assign a value to a macro variable. Macro variables are used for creating dynamic code and storing values that can be referenced later in the program. Options A, B, and C do not specifically assign values to macro variables.
In S nd
begin
L
C
B
N
Ans
Expl tion
of a D ng
statements in the current iteration and continue with the next iteration of the loop.
Which SAS statement is used to assign a format to a variable in a data step?
FORMAT statement
LABEL statement
INPUT statement
wer: A
anation: The FORMAT statement is used to assign a format to a varia AS data step. It allows you to control the appearance of the variable's
es when they are displayed or printed.
ch of the following statements is used to create a permanent SAS data a temporary dataset?
ATA step
ERGE statement ROC SQL
ROC SORT
LENGTH statement Ans
Expl ble
in a S valu
Whi set
from
D
M
P
P
Answer: D
Explanation: The PROC SORT statement is used to create a permanent SAS dataset from a temporary dataset. It sorts the observations and creates a new dataset that can be saved for future use.
Which SAS function is used to calculate the arithmetic mean of numeric values in a variable?
EAN VG UM
wer: A
anation: The SAS function MEAN is used to calculate the arithmetic umeric values in a variable. It computes the average value by summin alues and dividing by the number of observations.
ch of the following SAS procedures is used to perform statistical anal riance?
M
A
S
N
Ans
Expl mean
of n g all
the v
Whi ysis
of va
ANOVA procedure
REG procedure
TTEST procedure
CORR procedure
Answer: A
Explanation: The ANOVA procedure in SAS is used to perform statistical analysis of variance. It allows you to compare means across multiple groups or treatments to determine if there are significant differences between them.
ider the following SAS program: ork.test;
Name $ Age; ines;
25
rint data=work.test; ame;
will be displayed in the output?
he variable "Name" with its corresponding values from the dataset k.test".
Cons data w
input datal John
;
run;
proc p var N run; What
T
"wor
The variable "Age" with its corresponding values from the dataset "work.test".
Both the variables "Name" and "Age" with their corresponding values from the dataset "work.test".
No output will be displayed.
Answer: A
ct answer.
AS, which statement is used to assign a label to a variable? ABEL
ORMAT ITLE ETLABEL
wer: A
anation: The LABEL statement in SAS is used to assign a label to a ble. It provides a descriptive name or annotation for a variable, enhan
Explanation: The PROC PRINT procedure with the VAR statement is used to display specific variables from a SAS dataset. In this case, the VAR statement is set to "Name," indicating that only the variable "Name" and its corresponding values will be displayed in the output. Therefore, option A is the corre
In S
L
F
T
S
Ans Expl
varia cing
the understanding and interpretation of the data.
Which of the following SAS procedures is used to perform linear regression analysis?
ANOVA procedure
REG procedure
TTEST procedure
wer: B
anation: The REG procedure in SAS is used to perform linear regressi ysis. It allows you to model the relationship between a dependent vari ne or more independent variables, estimating the coefficients of the ssion equation.
ider the following program: ontents data=_all_;
ch statement best describes the output from the submitted program?
CORR procedure Ans
Expl on
anal able
and o regre
Cons proc c
run; Whi
The output contains only a list of the SAS data sets that are contained in the WORK library.
The output displays only the contents of the SAS data sets that are contained in the WORK library.
The output displays only the variables in the SAS data sets that are
contained in the WORK library.
The output contains a list of the SAS data sets that are contained in the WORK library and displays the contents of those data sets.
Answer: D
the contents of SAS datasets. When the DATA option is set to _AL is case, the procedure will display the names of all SAS datasets in th RK library and provide detailed information about their contents, inclu bles, their attributes, and other relevant information. Therefore, optio
correct answer as it states that the output will contain a list of the S ets in the WORK library and display the contents of those data sets.
ollowing SAS code is submitted: ewdata;
lddata;
ssing(salary) then salary = 0;
Explanation: The PROC CONTENTS procedure is used to obtain information about L_, as
in th e
WO ding
varia n D
is the AS
datas
The f data n
set o if mi run;
What does the IF statement in this code do?
It assigns a value of 0 to the variable "salary" for all observations in the data set "newdata."
It assigns a value of 0 to the variable "salary" for observations where the
variable "salary" is missing.
It assigns a value of 0 to the variable "salary" for observations where the variable "salary" is non-missing.
It assigns a value of 0 to the variable "salary" for all observations in the data set "olddata."
Answer: B
anation: The IF statement with the condition "missing(salary)" checks ariable "salary" is missing. If it is, the statement assigns a value of 0 t ble "salary" for those observations in the resulting "newdata" data set.
AS programming, which of the following statements is used to output ents of a dataset to an external file?
UT statement UTPUT statement ILE statement XPORT statement
wer: C
Expl if
the v o the
varia
In S the
cont
P
O
F
E
Ans
Explanation: The FILE statement in SAS programming is used to output the contents of a dataset to an external file. It specifies the location and attributes of the output file, allowing SAS to write the dataset contents to the file.
Consider the following SAS program: data work.salary;
set work.employee;
ategory = "Low";
eans data=work.salary; alary;
will be displayed in the output?
he summary statistics of the variable "salary" from the dataset k.salary".
he frequency table of the variable "category" from the dataset k.salary".
he summary statistics of the variable "category" from the dataset k.salary".
o output will be displayed.
if salary > 50000 then category = "High"; else c
run;
proc m var s run; What
T
"wor
T
"wor
T
"wor
N
Answer: A
Explanation: The PROC MEANS procedure is used to calculate summary statistics in SAS. In this case, the VAR statement is set to "salary," indicating that the summary statistics of the variable "salary" will be displayed in the output. Therefore, option A is the correct answer.
NPUT UTPUT UT NFILE
wer: D
anation: The INFILE statement in SAS is used to read data from an nal file and create a SAS dataset. It specifies the input file and its acteristics, such as the file name, format, and delimiter. Options A, B,
used for different purposes and do not specifically read external files
Which SAS statement is used to read data from an external file and create a SAS dataset?
I
O
P
I
Ans Expl
exter
char and
C are .
In SAS, which statement is used to output summary statistics for numeric variables?
PROC UNIVARIATE
PROC MEANS
PROC SUMMARY
PROC TABULATE
Answer: B
ch SAS function is used to convert character values to numeric values NPUT;
UT;
UM; HAR;
wer: A
anation: The INPUT function is used to convert character values to eric values in SAS. Option A, "INPUT," is the correct function for erting character values to numeric values. Options B, C, and D are no functions for this purpose.
Explanation: The PROC MEANS statement in SAS is used to output summary statistics for numeric variables. It provides information such as mean, median, minimum, maximum, and standard deviation, allowing for the analysis and understanding of the distribution of numerical data.
Whi ?
I
P
N
C
Ans Expl
num
conv t
valid
Consider the following SAS program:
data test;
set chemists; jobcode = Chem2;
then description = "Senior Chemist"; else description = "Unknown";
run;
hem2 nknown
enior Chemist
missing character value) wer: B
anation: In the given SAS program, the ELSE statement assigns the v known" to the variable DESCRIPTION when the condition for the IF ment is not met. Therefore, the value of the variable DESCRIPTION i known."
What is the value of the variable DESCRIPTION?
c
U
S
(
Ans
Expl alue
"Un
state s
"Un
Which SAS statement is used to delete a variable froma dataset?
drop variable;
delete variable;
remove variable;
exclude variable;
Answer: A
Explanation: The SAS statement used to delete a variable from a dataset is "drop variable;". Option A is the correct answer.
ch of the following SAS functions is used to calculate the mean of nu es in a dataset?
EAN UM OUNT
wer: A
anation: The MEAN function in SAS is used to calculate the mean age) of numeric values in a dataset. It sums up the values and divides y the number of non-missing values to compute the mean.
Whi meric
valu
M
S
C
N
Ans Expl
(aver the
sum b