4. computes the standard deviation of numbers. This exercise uses a different but equivalent formula to compute the standard deviation of n numbers. E« – meany Xy + Xz + ... + x, mean deviation = n- 1 • To compute deviation with this formula, you have to store the individual numbers using an array, so that they can be used after the mean is obtained. • Write a test program that takes the input from a text file, invokes the function then writes the output into a text file

4. computes the standard deviation of numbers. This exercise uses a different but equivalent formula to compute the standard deviation of n numbers. E« – meany Xy + Xz + ... + x, mean deviation = n- 1 • To compute deviation with this formula, you have to store the individual numbers using an array, so that they can be used after the mean is obtained. • Write a test program that takes the input from a text file, invokes the function then writes the output into a text file

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

CODE IN JAVA design a program that grades arithmetic quizzes as follows: (Use the below startup code for Quizzes.java and provide code as indicated by the comments) 1. Ask the user how many questions are in the quiz. 2. Use a for loop to load the array. Ask the user to enter the key (that is, the correct answers). There should be one answer for each question in the quiz, and each answer should be an integer. They can be entered on a single line, e.g., 34, 7, 13, 100, 8 might be the key for a 5-question quiz. You will need to store the key in an array called "key". 3. Ask the user to enter the student's answers for the quiz to be graded. There needs to be one answer for each question. Note that each answer can simply be compared to the key as it is entered. If the answer is correct, add 1 to a correct answer counter. need this in a separate for loop from the loop used to load the array. 4. When the user has entered all of the answers to be graded, print the number correct…
Programming in C language. AskForNumbers Declare an integer array lacally with the size of 200. Create a program that asks the user how many numbers the have. Use your getChoice() function from before. Make sure it does not exceed 200 as the locally declared array has the size of 200. Use a for loop and ask the user to enter each value that must be stored in the array. Use a second loop to display each number, and also determine the average of all values in the array. After the for loop, display the average of all numbers. This program will let you enter a list of numbers into an array. It will then display all of the numbers, and finally display the average of all numbers. How many numbers would you like to enter?5 Please enter a number:22 Please enter a number:33 Please enter a number:44 Please enter a number:55 Please enter a number:66 Number Number 2 is 33 Number 3 is 44 Number 4 is 55 Number 5 is 66 The average is 44 is 22
In statistics the median of a set of values is the value that lies in the middle when the values are arranged in sorted order. If the set has an even number of values, then the median is taken to be the average of the two middle values. Write a function that determines the median of a sorted array. The function should take an array of numbers and an integer indicating the size of the array and return the median of the values in the array. You may assume the array is already sorted. Use pointer notation whenever possible.
Task: A shop sells a range of mobile devices, SIM cards and accessories as shown in the table (see screenshot): Write a program algorithm for this shop. - Your program or programs must include appropriate prompts for the entry of data; data must be validated on entry. - Error messages and other output need to be set out clearly and understandably. - All arrays, variables, constants and other identifiers must have meaningful names. You will need to complete these three tasks. Task 1 – Setting up the system. Write a program to: - use appropriate data structures to store the item code, description and price information for the mobile devices, SIM cards and accessories; - allow the customer to choose a specific phone or tablet; - allow phone customers to choose whether the phone will be SIM Free or Pay As You Go; - allow the customer to choose a standard or luxury case; - allow the customer to choose the chargers required (none,…
a C++ program that creates a two-dimensional integer array (4x3) initialized with user given data. The program should have the following functions: • Print the sum of all values in the array. • Print the average of all the values in the array. • Take row number from user and print the sum of the values in that specified row.(use loop and no if statement) • Take column number from user and print the sum of the values in that specified column.(use loop and no if statement)
1.Enter a positive integer value n (6 <= n < 30) and take n integers from the user as input and store them in array a. Then move the elements of this array one step to the left and make the first element of the array the last element of the array. Shift this array with a function. Display integer value n, the array elements in original order and the array elements in modified order (after shifting). For example, if the original order of the array a is like below : a: 33 45 67 89 12 7 After shifting one step to the left, you should get the following order of the array а: a: 45 67 89 12 7 33
Problem D. 73511. Quarters Input file: Out put file: Time limit: Memory limit: standard input standard output 1 second 256 megabytes In this task, you have to generate a two-dimensional array of n rows and m columns in the following way. Let's pass two lines through our two-dimensional array horizontally and vertically, both cutting the array in the middle. Formally, these are the horizontal line after -th row and the vertical line after -th column (n and m are even). Now we have four parts of the array: right-upper quarter, left-upper quarter, left-lower quarter and right- lower quarter. Fill the right-upper quarter with 0-s, the left-upper quarter with 1-s, the left-lower quarter with 2-s, the right-lower quarter with 3-s. For clearance, see the examples below. Input The first line of input contains two-separated positive even integers n and m – the number of rows and columns respectively (2 < n, m < 100). Output Output n lines each containing m space-separated integers – the…
Please How to write a function that imports a data from a text file and load it into 5 parallel arrays For example "I want to import I like reading books 2.0" I want function to read the input and put it into 5 parallel arrays
2. you have data of size 499 byte stored in an array starting at 45000H, write a program to check the data if it is positive store it in memory location starting at 47000H, if it is negative change it into positive and store it in the same array
can someone help me fix this code so it outputs properly In order to better organize its business, the Lawrenceville Lawn Service wants to computerize its customer list. The information for each customer(name, address, size of lawn, and day of the week they wish their lawn to be mowed) should be stored in parallel arrays. Write a program that allows the user to perform the following functions: Add a new customer Remove a customer Display a table of jobs for a given day. The table should be similar to the one shown in the sample run below, showing the name, address, cost and total charge including 7% sales tax. LLS charges 2 cents per square yard for cutting. When run, the program output should look similar to: Enter Display, Add, dElete, Quit: a ADD Enter name to be added: Tiger Woods Enter address: 65 Lakeshore Drive Enter lawn size: 1262 Enter day to be cut: Saturday Enter Display, Add, dElete, Quit: a ADD Enter name to be added: Julia Winitsky Enter address: 16 Manor Dr Enter lawn…
,conveyance allowance and basic pay. Write a program that takes 20 elements of array from user at run time. Find maximum element of array and swap it with last element of array. Display before and after swapping array. OOLuck ENG 813 AM IN 4/14/2021
Using C++ Language In this program, you will write a program that uses a function to compute the maximum value in a randomly generated array of integers. Inside your main function, declare an array of size 10. Using a suitable loop, generate seeded randomly generated numbers between 50 and 100 inclusive. Display the randomly generated numbers using a suitable message. Call a function that returns the maximum value of the array. You will need to pass this array to a function. The function does not need to modify the array, hence pass it as a constant array. Use a global constant for the size of the array. You must display the maximum value of the array in the main function.