There are 32 students standing in a classroom. Two different algorithms are given for finding the average height of the students.Algorithm AStep 1: All students stand.Step 2: A randomly selected student writes his or her height on a card and is seated.Step 3: A randomly selected standing student adds his or her height to the value on the card, records the new value on the card, and is seated. The previous value on the card is erased.Step 4: Repeat step 3 until no students remain standing.Step 5: The sum on the card is divided by 32. The result is given to the teacher.Algorithm BStep 1: All students stand.Step 2: Each student is given a card. Each student writes his or her height on the card.Step 3: Standing students form random pairs at the same time. Each pair adds the numbers written on their cards and writes the result on one student's card; the other student is seated. Theprevious value on the card is erased.Step 4: Repeat step 3 until one student remains standing.Step 5: The sum on the last student's card is divided by 32. The result is given to the teacher.Which of the following statements is true? Which of the following statements is true?AAlgorithm A always calculates the correct average, but Algorithm B does not.ВAlgorithm B always calculates the correct average, but Algorithm A does not.CBoth Algorithm A and Algorithm B always calculate the correct average.DNeither Algorithm A nor Algorithm B calculates the correct average.

An algorithm is nothing but a set of rules or a step wise explanation of any process or calculation…

Which of the following statements is true? A Algorithm A always calculates the correct average, but Algorithm B does not. B) Algorithm B always calculates the correct average, but Algorithm A does not. c) Both Algorithm A and Algorithm B always calculate the correct average. Neither Algorithm A nor Algorithm B calculates the correct average.

Which of the following statements is true? A Algorithm A always calculates the correct average, but Algorithm B does not. B) Algorithm B always calculates the correct average, but Algorithm A does not. c) Both Algorithm A and Algorithm B always calculate the correct average. Neither Algorithm A nor Algorithm B calculates the correct average.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

There are 32 students standing in a classroom. Two different algorithms are given for finding the average height of the students.
Algorithm A
Step 1: All students stand.
Step 2: A randomly selected student writes his or her height on a card and is seated.
Step 3: A randomly selected standing student adds his or her height to the value on the card, records the new value on the card, and is seated. The previous value on the card is erased.
Step 4: Repeat step 3 until no students remain standing.
Step 5: The sum on the card is divided by 32. The result is given to the teacher.
Algorithm B
Step 1: All students stand.
Step 2: Each student is given a card. Each student writes his or her height on the card.
Step 3: Standing students form random pairs at the same time. Each pair adds the numbers written on their cards and writes the result on one student's card; the other student is seated. The
previous value on the card is erased.
Step 4: Repeat step 3 until one student remains standing.
Step 5: The sum on the last student's card is divided by 32. The result is given to the teacher.
Which of the following statements is true?

Which of the following statements is true?
A
Algorithm A always calculates the correct average, but Algorithm B does not.
В
Algorithm B always calculates the correct average, but Algorithm A does not.
C
Both Algorithm A and Algorithm B always calculate the correct average.
D
Neither Algorithm A nor Algorithm B calculates the correct average.

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