Question

Consider the following algorithm which uses an integer variable n. Double the value of n. Add 34 to the answer. Round the answer to the nearest ten. Sum the digits of the answer. Display the final answer. Which of the following statements best describes the predictability of the results when this algorithm is run on a computer?

1) The results will always be the same for any given value of n
2) The results will vary depending on the value of n
3) The results will be unpredictable and random
4) The algorithm will not work correctly

Answer 1

The predictability of the results in the given algorithm depends on the initial value of n.

Step-by-step explanation:

The predictability of the results when running this algorithm on a computer depends on the initial value of n. Let's consider the steps of the algorithm:

1. Double the value of n.
2. Add 34 to the answer.
3. Round the answer to the nearest ten.
4. Sum the digits of the answer.
5. Display the final answer.

If n is a constant value, then the results will always be the same for that specific value of n. However, if n can vary, then the results will vary depending on the value of n. Therefore, the correct answer is 2) The results will vary depending on the value of n.