39. If a programmer tested the following code with the values indicated, would the program cor- rectly calculate the average of the test scores? Assume all variables and lists have been appro- priately initialized. FOR EACH score IN testScores { IF score> 0 ( total total } count count 1 } DISPLAY ("The average score on the test was: ", total / count) 80, 85, 50, 0, Test1 [100, 90, 80, 85, 90) Test2 [192, 85, 74, 100, 96, 88] score (A) Yes, the code works as it should for both test cases. (B) No, the code does not average the test scores correctly for either test. (C) No, the code only works for the Testl scores. (D) No, the code only works for the Test2 scores. 40. When should a heuristic algorithm be used? (A) When a problem is unable to process in reasonable time but a "close enough" solu- tion is acceptable (B) When the data is not sorted and cannot be placed in the order needed (C) When a problem is undecidable because not enough information is known (D) When searching is needed but efficiency is a requirement 41. How many times do FOR EACH loops run with lists? (A) Once (B) Until the index for the list is 0 (C) For the LENGTH of the list (D) Until the user types STOP

39. If a programmer tested the following code with the values indicated, would the program cor- rectly calculate the average of the test scores? Assume all variables and lists have been appro- priately initialized. FOR EACH score IN testScores { IF score> 0 ( total total } count count 1 } DISPLAY ("The average score on the test was: ", total / count) 80, 85, 50, 0, Test1 [100, 90, 80, 85, 90) Test2 [192, 85, 74, 100, 96, 88] score (A) Yes, the code works as it should for both test cases. (B) No, the code does not average the test scores correctly for either test. (C) No, the code only works for the Testl scores. (D) No, the code only works for the Test2 scores. 40. When should a heuristic algorithm be used? (A) When a problem is unable to process in reasonable time but a "close enough" solu- tion is acceptable (B) When the data is not sorted and cannot be placed in the order needed (C) When a problem is undecidable because not enough information is known (D) When searching is needed but efficiency is a requirement 41. How many times do FOR EACH loops run with lists? (A) Once (B) Until the index for the list is 0 (C) For the LENGTH of the list (D) Until the user types STOP

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

See similar textbooks

Similar questions

How do you go about gathering the information required to compile a thorough operations handbook, is the query. 6006
Please, if you don't mind, provide us with a brief summary of the various components required to assemble a computer.
List several technological advances in computing that made computers now smaller, powerful while maintaining power efficiency. Provide short descriptions on these technologies.Please give sources if possible.
May I ask for the answer and explanation for question 7?
Please submit an Excel file that may be used to calculate imputed interest and taxable social security benefits. The spreadsheet should include formulae to help with the computations.
Who are Mark Dean's biological parents?
Please detail the processes involved in converting and switching over the data.
Please provide the names and short descriptions of 10 international organizations that are involved in computer science and information technology.
I'm wondering about your degree of knowledge about the use of modern computers.
List several technological advances in computing that made computers now smaller, powerful while maintaining power efficiency. Provide short descriptions on these technologies.Please provide more.
Which one of the following statements is FALSE? File Transfer Protocol (FTP) is a TCP service that operates on ports 20 and 21. Telnet is a TCP service that operates on port 23. Simple Network Management Protocol (SNMP) is a TCP service that operates on port 25. Dynamic Host Configuration Protocol (DHCP) is a TCP service that operates on port 80.
Define the terms below.a) Is there a union?