Question

Consider the program and data below. What is the value of Count after the third observation is read?

data newnums;
set nums;
retain Count 100;
Count+Tens;
run;
a. Missing
b. 0
c. 100
d. 130

Answer 1

Without the values of Tens for each observation, it's impossible to determine the exact value of Count after the third observation is read. Count starts at 100 and would increase by the sum of the Tens from the first three observations.

Step-by-step explanation:

The question pertains to the SAS programming language and the execution of a DATA step with a RETAIN statement. Initially, the variable Count is set to 100 due to the retain statement. The program is adding the value of the variable Tens to Count for each observation read in from the data set nums.

To determine the value of Count after the third observation, we need to know the values of Tens for the first three observations, but since this information is not provided, we cannot definitively state the value of Count. If we assume that Tens has a value for the first three observations, we need to add the sum of these three values of Tens to the initial value of 100.