Using for loop, write a Python program that: 1. Reads the number of hours worked by 10 employees. 2. Calculate and display the: . the total hours worked by all 10 employees and • the average hours worked by 10 employees. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10 E E x X, T The total = 0 for i in range (10) hours_work = int('input("Enter the price: ")) %3D total = total + work hours for i in range (start[ end, step]): print( the total hours worked by all 10 empolyees, and the average hours we

Using for loop, write a Python program that: 1. Reads the number of hours worked by 10 employees. 2. Calculate and display the: . the total hours worked by all 10 employees and • the average hours worked by 10 employees. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10 E E x X, T The total = 0 for i in range (10) hours_work = int('input("Enter the price: ")) %3D total = total + work hours for i in range (start[ end, step]): print( the total hours worked by all 10 empolyees, and the average hours we

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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Written In Python The amount of time students spent studying for an test is exponentially distributed with a mean of 25 hours. Write a piece of code to compute the percentage of students who spent between 30 and 40 hours studying for the test? Your code should print out the percentage rounded to 1 decimal place.
This is C code for a math program. Here are the instructions. Here is my code. After I complete my initial problem instead of going back through the While loop back to the menu, it jump streight to division and then crashes. Please take a look and fix. ********* For this project, you will create a program that will test the user’s proficiency in solving different types of math problems. The program will be menu-driven. The user will select either addition, subtraction, multiplication, or division problems. The program will then display a problem, prompt the user for an answer, and then check the answer displaying an appropriate message to the user whether their answer was correct or incorrect. Instructions This week you’ll complete your project. First, check through for any corrections you need to make – perhaps your instructor as comments from Week 4 that you want to incorporate. This week, make sure you add functionality to keep statistics on the number of correct answers…
Write a program that displays a table of pounds and equivalent weights in kilograms. You can find the conversion factor online if necessary. Store this factor in a properly named constant. Allow the user to specify the range of pounds for the table by prompting for the start, stop, and step values for the pounds column. Display the pounds accurate to two decimal places centered in a column 10 characters wide. The kilometers should display accurate to three decimal places and right-aligned in a column 12 characters wide (see page 75-78). Column headings should be displayed with the same alignments. See Sample Output.
 The fields below repeat for each customer: o Customer name (String)o Customer ID (numeric integer) o Bill balance (numeric)o EmailAddress (String)o Tax liability (numeric or String) The customers served by the office supply store are of two types: tax-exempt or non-tax- exempt. For a tax-exempt customer, the tax liability field on the file is the reason for the tax exemptions: education, non-profit, government, other (String). For a non-tax exempt customer, the tax liability field is the percent of tax that the customer will pay (numeric) based on the state where the customer’s business resides. Program requirements: From the information provided, write a solution that includes the following:  A suitable inheritance hierarchy which represents the customers serviced by the office supply company. It is up to you how to design the inheritance hierarchy. I suggest a Customer class and appropriate subclasses..  For all classes include the following: o Instance variables o…
The local taqueria wants you to write a program that tracks the number of burritos they sell and helps them analyze their business. There are four types of burritos: carnitas, beef, shrimp, and vegetarian. Your program should prompt the user for the number of burritos sold of each type, and then print out a report listing a total number of burritos sold, and the type of burrito which sold the most. You must use two parallel 4-element arrays; one array of type string to store the names of the burrito types, and one array of type int to store the number of burritos sold per type. You can store the name of the burrito types using an initialization list. To get you started, here are the array declarations: **************************************************************** const int NUM_TYPES = 4;string burritoType[NUM_TYPES] = {"carnitas", "beef", "shrimp", "veggie"};int numSold[NUM_TYPES]; **************************************************************** So, for example, burritoType[1]…
In Python using the Pandas Module: Find the Player with the Highest Batting Average from 2019, only if their number of plate appearances (PA) >= 250. Plate Appearances (Pl_App), calculated as: Pl_App = HBP + SH + SF + AB + BB + Batting Average (B_AVG) is the ratio of Hits to at Bats. So B_AVG = H / AB, and is reported to three decimal points. Show code and output to prove functionality. Below is 3 years of player data: player year team lg G AB R H HR BB SO IBB HBP SH SF Alan J. 2020 NYA AL 2 0 0 0 0 0 0 0 0 0 0 Barry B. 2020 HOU AL 4 0 0 0 0 0 0 0 0 0 0 Michael J. 2020 CHA AL 60 240 43 76 19 18 59 1 3 0 1 Jim R. 2020 ATL NL 46 160 46 40 14 38 60 2 4 0 0 Nolan R. 2020 TBA AL 54 185 29 48 8 20 74 0 0 0 0 Sammy S. 2020 CHN NL 13 0 0 0 0 0 0 0 0 0 0 Frank T. 2020 SDN NL 3 1 0 0 0 0 1 0 0 0 0 Alan J. 2019 KCA AL 6 0 0 0 0 0 0 0 0 0 0 Barry B. 2019 ATL NL 16 49 4 9 2 2 18 0 0 0 0 Michael J. 2019 LAA AL 38 124 9 20 3 7 55 0 1 0 0 Jim R. 2019 MIN AL 44 89 10 17 0…
Transient PopulationPopulations are affected by the birth and death rate, as well as the number of people who move in and out each year. The birth rate is the percentage increase of the population due to births and the death rate is the percentage decrease of the population due to deaths. Write a program that displays the size of a population for any number of years. The program should ask for the following data: The starting size of a population P The annual birth rate (as a percentage of the population expressed as a fraction in decimal form)B The annual death rate (as a percentage of the population expressed as a fraction in decimal form)D The average annual number of people who have arrived A The average annual number of people who have moved away M The number of years to display nYears Write a function that calculates the size of the population after a year. To calculate the new population after one year, this function should use the formulaN = P + BP - DP + A - Mwhere N is the…
6. A palindrome is a number or text phrase that reads the same backwards or forwards. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 45554 and 11611. Write a program that reads a 5 digit integer and determines whether it is a palindrome. Hint: One way to do this is to use division (/) and modulus (%) operators to separate the number into individual digits.
In various applications, you are often asked to compute the mean and standard deviation of data. The mean is simply the average of the numbers. The standard deviation is a statistic that tells you how tightly all the various data are clustered around the mean in a set of data. For example, what is the average age of the students in a class? How close are the ages? If all the students are the same age, the deviation is 0. Write a program that prompts the user to enter any number of values into a double array, and then calculates and displays the mean and standard deviations of these numbers using the following formulas: (z - mean) z+z3+ *** +zn deviation = mean = n-1 Required Methods You must write your program so that the following methods are defined/implemented and used (called): • /* Compute the deviation of double values */ public static double deviation (double[] x) • /* Compute the mean of an array of double values */ public static double mean (double[] x) Sample Run (user input…
A company wants to know the percentages of total sales and total expenses attributableto each salesperson. Each person has the following data: name – last name and firstname, sales, and expenses. Write a program that produces a report with a header linecontaining the total sales and total expenses. Following this heading should be a tablewith each salesperson’s name, percentage of total sales, and percentage of totalexpenses sorted by the salesperson’s name. Use a total of 25 records for this project.
Python Your first assignment is to help test the “red mushroom” power-up. This power-up provides a speed boost to the player for a limited time. The team wants to be able to easily test different speed values to find the one that is the most fun. Your task is to write the function calculate_boost_distance(speed, time). This function takes an integer value for speed representing the miles per hour of the kart and a floating point value time that represents the number of seconds the boost will last. It returns a floating point number representing the speed multiplied by the time. Sample usage of the completed function: Full explain this question and text typing work only
At a certain university, students have to submit their exams online. The administration decides that for each minute of late submission, 5 points are deducted. Write a program that asks the user for his initial grade and the late submission time (in minutes), and then displays the final result. Sample Run 1: Enter your initial grade: 82 Enter the late submission time (in minutes): 6 Your final grade is 52 Sample Run 2: Enter your initial grade: 115 Grades should be between 0 and 100 Sample Run 3: Enter your initial grade: 43 Enter the late submission time (in minutes): 10 Your final grade is 0 Sample Run 4: Enter your initial grade: 72 Enter the late submission time (in minutes): -2 Time should be positive