VAR statement

VARNUM Option

Variables Statement

all of the above

X1||SP ||X2||SP||X3||SP||X4

TRIM(X1)||SP||TRIM(X2)||SP||TRIM(X3)||SP||TRIM(X4)

TRIM(LEFT(X1))||TRIM(LEFT(X2))||TRIM(LEFT(X3))||TRIM(LEFT(X4))

TRIM(LEFT(X1))||SP||TRIM(LEFT(X2))||SP||TRIM(LEFT(X3))||SP||TRIM(LEFT(X4))

True

False

BY variables must be either indexed or sorted

Summary statistics are computed for BY variables

BY-group processing is preferred when you are categorizing data that contains few variables

BY-group processing overwrites your data set with the newly grouped observations

by boarded transfer deplane;

class boarded transfer deplane;

output boarded transfer deplane;

var boarded transfer deplane;

median

range

standard deviation

standard error of the mean

only for the current procedure

only for the current DATA step

only for the current SAS session

permanently

True

False

40

96

200

256

True

False

1950-2049

1950-2050

1949-2050

1950-2000

IDnum

Age

Height

Weight

your PROC REPORT step will not execute successfully

you can produce only list reports

you can order rows by specifying options in the PROC REPORT statement

you can produce only summary reports

you change them

you cancel them

you end your SAS session

all of the above

$38,245.39 and 38245.39

$38,245.40 and $38245.40

$38,245.40 and 38245.40

$38,245.40 and 38,245.40

James Smith

Carl Hofman

Yukihiro Matsumoto

J Bannerji

Guido van Rossum

Dennis Ritchie

James Gosling

Won Neuman

Google

Microsoft

Oracle

Sun

W. A. Wulf

Martin Richards

D. B. Russell

A. N. Habermann

Bottenbruch

Dennis Ritchie

McCarthy

Martin Richards