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Quiz Sciences
Quiz Sciences
Producing descriptive stats
by
Tomowsiak
54 played -
11 yrs ago
Chapter 9 from the book
10 QUESTIONS
41%
1
The default stats for proc means are variable count, mean, min, max and
Median
Range
S. d.
S. e of the mean
2
Which statement limits proc means to the variables boarded, transfer, deplane
By boarded transfer deplane;
Class boarded transfer deplane;
Output boarded transfer deplane
Var boarded transfer deplane;
3
Which is a poor candidate for proc means analysis?
Idnumber
Age
Height
Weight
4
What's true regarding by group processing?
A file has to be sorted on these first
By variables get summary stats
By grouping is preferred when you have just a few variables
By group overwrites your data with a new file
5
When you run proc sort, you automatically creaet a new file
True
False
6
If I want to run proc means and group by survive and sex, which statement is this?
Class sex survive;
Class survive sex;
By sex survive;
By survive sex;
7
By deafult, proc freq creates a table of frequencies for which kind of variable
Character
Numeric
Both
Neither, variables must be specified in a list
8
Freq. distributions work best with?
Continous data
Categorical data
Numeric data
Unique values
9
If I want to create a two way table, using proc freq, of weight by height, which one would I use?
Tables height weight;
Tables weight height;
Tables height*weight;
Tables weight*height;
10
If i want to suppress printing frequencies, row percents, column percents, in proc freq, which can be used? (output is a two way table of weight by height)
Tables weight*height/ nofreq norow nocol;
Tables weight*height/ nocol;
Tables weight height/ nofreq norow nocol;
Tables height*weight/ nofreq norow nocol;
Let's GO
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Generated on 19 Aug 22, 7h04