Tag: technology

Quizzes (307) Questions (36705)

Questions Related to technology

Multiple choice technology programming languages

Which of the following is true about Proc Freq?

  1. For one-way frequency tables, PROC FREQ can compute statistics to test for equal proportions, specified proportions, or the binomial proportion

  2. PROC FREQ automatically displays the output in a report and can also save the output in a SAS data set.

  3. To estimate the strength of an association, PROC FREQ computes measures of association that tend to be close to zero when there is no association and close to the maximum (or minimum) value when there is perfect association.

  4. Statement 1 & 2

  5. Statement 2 & 3

  6. All of the above
Reveal answer Fill a bubble to check yourself
F Correct answer
Full explanation
Multiple choice technology programming languages

When processing a FREQ procedure it is possible to run out of memory due to the fact that this procedure stores all of the value combinations in memory during processing. In order to prevent this error, try using Proc SORT to sort the data by as many variables as you can and also include those sorted variables in a BY statement in your Proc FREQ procedure. True or False?

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation
Multiple choice technology programming languages

Data asthma; input city Asthma count; datalines; 1 1 35 1 0 65 2 1 40 2 0 60 3 1 25 3 0 75 ; run; proc format; value asth 0= 'No Asthma' 1= 'Asthma' ; run; Which of the following code produce the output : Asthma Frequency Percent ---------------------------------- Asthma 100 33.33 No Asthma 200 66.67

  1. proc freq data=asthma ; weight count; tables asthma / nocum; format asthma asth.; run;

  2. proc freq data=asthma order = formatted ; weight count; tables asthma / nocum; format asthma asth.; run;

  3. proc freq data=asthma order = formatted ; weight count; tables asthma ; format asthma asth.; run;

  4. proc freq data=asthma order = formatted ; tables asthma / nocum; format asthma asth.; run;
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation