Which function is used to calculate the total amount of a numeric column across rows?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the IGCSE Algorithms and Pseudocode Exam. Study with comprehensive questions covering key algorithms and pseudocode techniques. Access hints and explanations to gear up for your exam success!

Multiple Choice

Which function is used to calculate the total amount of a numeric column across rows?

Explanation:
The operation you need is adding every numeric value in the column to get a single total. That’s exactly what the summation function does: it takes all the values in the column across rows and returns their arithmetic sum. So this is the best choice for calculating a total amount. Think of it like adding up all the sales amounts in a column to get total sales. The other options have different roles: one counts how many rows or non-null values there are, another finds the largest value, and the last finds the smallest value. In the presence of missing values, the sum typically ignores them, giving you the total of the existing numbers.

The operation you need is adding every numeric value in the column to get a single total. That’s exactly what the summation function does: it takes all the values in the column across rows and returns their arithmetic sum. So this is the best choice for calculating a total amount.

Think of it like adding up all the sales amounts in a column to get total sales. The other options have different roles: one counts how many rows or non-null values there are, another finds the largest value, and the last finds the smallest value. In the presence of missing values, the sum typically ignores them, giving you the total of the existing numbers.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy