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最新的 Programming Fundamentals A00-215 免費考試真題 (Q183-Q188):
問題 #183
You are analyzing customer data and need to generate a report that displays the frequency distribution of customer age groups (18-25, 26-35, 36-45, 46-55, 56+) along with the corresponding percentages. Which of the following PROC FREQ statements would achieve this?
答案:C
解題說明:
Option D is the correct answer It uses the NOCOL PERCENT option to display the percentages and utilizes the FORMAT statement to define a format for the age variable using a custom AGEGROUP format, allowing grouping of ages into the desired categories- Option A only produces the frequency count. Option B doesn't use the format, which would not group ages into the required categories. Option C only uses the format without the percentage calculation. Option E is an incorrect code snippet This demonstrates the need for both format definition and percentage calculation for achieving the desired report output.
問題 #184
What is the default byte size of a numeric variable?
Enter your numeric answer in the space above.
答案:
解題說明:
8
Explanation:
The default length of numeric variables in SAS data sets is 8 bytes.
In SAS, the default byte size of a numeric variable is 8 bytes. This allows for a significant amount of precision and a wide range of numeric values to be stored within a numeric variable, regardless of the actual number of digits in the number being stored.
References:
* SAS documentation on numeric variables, SAS Institute.
問題 #185
You have a dataset 'CustomerData' with variables 'CustomerlD', 'Age', and 'Income'. You want to create a new dataset 'CustomerSegments' with 'CustomerlD' and 'Segment' variables. The 'Segment' variable should be assigned based on the following rules: 1. If 'Age' is less than 30 and 'Income' is greater than 50,000, assign 'Young Professionals'. 2. If 'Age' is between 30 and 50 and 'Income' is greater than 75,000, assign 'Mid-Career Earners'. 3. If 'Age' is greater than 50 and 'Income' is greater than 100,000, assign 'Senior Executives'. 4. For all other cases, assign 'Other'. Which of the following code snippets will produce the correct 'CustomerSegments' dataset?
答案:D
解題說明:
Option B is the correct code snippet as it accurately applies the conditional logic. It uses nested IF- THEN/ELSE statements to capture the multiple conditions based on 'Age' and 'Income', and the 'Segment' is assigned appropriately based on the rules. Options A, C, and D have incorrect conditions or miss some of the specified logic. Option E correctly uses 'output' but is not needed in this case as the default behavior in the DATA step is to output the data.
問題 #186
You have a dataset with customer information, including their purchase history. You need to identify the top 10 customers with the highest total purchase amount and display their information in descending order of their total purchase amount. Which code snippet correctly uses PROC SORT to achieve this? (Assume you have a variable named 'TotalPurchaseAmount' in our dataset)
答案:E
解題說明:
Option E is the correct code snippet. It first sorts the data in ascending order of TotalPurchaseAmount using PROC SORT. Then, it uses a DATA step to create a new dataset called Top10Customers, selecting only the first 10 observations from the sorted dataset. This effectively retrieves the top 10 customers with the highest total purchase amount. Option A sorts in ascending order, not descending. Option B uses the wrong syntax for descending order (BY DESCENDING Option C is incorrect because NODIJPKEY removes duplicate observations, which may not be what is intended in this scenario. Option D uses the wrong syntax for descending order (BY - . DESCENDING).
問題 #187
In your report generation process, you need to display a title spanning two lines, with the first line aligned left and the second line aligned right. Which of the following options correctly achieves this using the TITLE statement?
答案:B
解題說明:
Option D is the correct way to achieve the desired title format The 'I' symbol within the TITLE statement allows you to specify multiple lines of text The first line is aligned left by default. Using "Generated on &DATE" after the '/' aligns the second line to the right Other options are incorrect because they either use incorrect syntax or don't specify alignment correctly. Option A and C create separate title lines without specific alignment Option B uses LEFT and RIGHT keywords which are not valid within the TITLE statement. Option E uses ALIGN-RIGHT, which only applies to the entire TITLE statement, not individual lines.
問題 #188
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