Create a fairly efficient method for each of the following issues and classify its efficiency. b. You have a file containing n student records, each of which includes the student's number, name, home address, and date of birth. Determine the number of pupils from each of the 50 states in the United States.
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- A manager has a list of items that have been sorted according to an item ID. Some of them are duplicates. She wants to add a code to the database that assigns a 1 to the item if it is unique, and if there are duplicates, assigns the number of the duplicate. An example is shown below. The first two items are unique, so the repeat code is 1. However, Item ID 37695 is listed six times, so the codes are assigned from 1 to 6, and so on. Explain how to assign the correct code using an IF statement Item ID Repeat Code35080 135222 137695 137695 237695 337695 437695 537695 637712 137722 137757 137757 2 In cell B2 enter 1, and then type a formula into cell B3, followed by dragging the formula down column B until it aligns with the last row in the Item ID column. Which of the following is the correct formula to type into cell B3?You are given a list of courses that are currently available in Oxford College that looks like the following: courses = ['CSE110','CSE111','MAT620','CSE520','EEE361','CSE650','MAT510']. All courses till 400 level (499) are for the undergraduate students whereas any courses above 500 are for the graduate or masters students. Write a python program that creates a dictionary from the above list where the keys will be each department name (CSE,EEE,MAT for the above example) and their values will be a dictionary of two keys - Undergraduate Courses and Graduate Courses. Each key will have courses that fall in Undergraduate and Graduate level respectively. Sample Input - No need to take input ['CSE110','CSE111','MAT620','CSE520','EEE361','CSE650','MAT510'] Sample Output: (You just have to print the resultant dictionary. No need to follow the pattern below) { 'CSE':{ 'Undergraduate':['CSE110','CSE111'], 'Graduate':['CSE520','CSE650'] },…complete the data system for citywide taxi company. now, the information for each taxi is expanded to include: taxi id (such as ctc0001), the driver’s name, the maker of the car (such as ford), the model of the car (such as escape), the color of the car (such as black), the license number (such as hxt 4578), the number of passages the car served in the entire shift (integer type, this field will be left empty for this project). your c++ program will (with array of class object): define a class for the car with all members of variable mentioned above as private; write all necessary class member functions to access those member variables (write or read); read up to 50 records of data from the keyboard (provide a method to end the input before reaching 50 records); (1 points) save all records inputted from step 3 to a disk file called ctc.dat. In cpp
- complete the data system for citywide taxi company. now, the information for each taxi is expanded to include: taxi id (such as ctc0001), the driver’s name, the maker of the car (such as ford), the model of the car (such as escape), the color of the car (such as black), the license number (such as hxt 4578), the number of passages the car served in the entire shift (integer type, this field will be left empty for this project). your c++ program will (with array of class object): define a class for the car with all members of variable mentioned above as private; write all necessary class member functions to access those member variables (write or read); ) read up to 50 records of data from the keyboard (provide a method to end the input before reaching 50 records); save all records inputted from step 3 to a disk file called ctc.dat.The file named Ch21p1.xlsx contains data about unit sales for 11 products during the years1999–2003. Write a formula using the MATCH and OFFSET functions that determines the sales ofa given product during a given year. Can you think of another way to solve this problem without using the MATCH and OFFSET functions?01. You are given a list of queries, each consisting of three integers: a, b, and k. Your task is to perform a series of operations on an array of size n such that each element in the array is incremented by k in a specific range defined by a and b... Explain also. .
- Use Python Code Your task is : Number of reported COVID-19 deaths by country. (Use pandas to read the csv table. Example : df = pd.read_csv('Covid19Deaths.csv') then do the code using the dataframe) COVID-19 Deaths table (csv): Province/State Country/Region Lat Long ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 2/1/2020 2/2/2020 2/3/2020 2/4/2020 2/5/2020 2/6/2020 2/7/2020 2/8/2020 2/9/2020 ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 3/1/2020 3/2/2020 3/3/2020 3/4/2020 3/5/2020 3/6/2020 3/7/2020 3/8/2020 3/9/2020 ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## ######## 4/1/2020 4/2/2020 4/3/2020 4/4/2020 4/5/2020 4/6/2020 4/7/2020 Afghanistan 33 65 0 0 0 0 0 0 0 0…Answer the given question with a proper explanation and step-by-step solution. For this question use the file data1.csv The file contains information on various customers. Each customer has a unique customer id. The data also has information on age income and Gender of the customers. Space can be used as a delimiter for this file. Find the following: A) The total number of the rows in the file. B) The number of unique customer ids in the datafile. For this question create a set object which will only allow you to add unique customer ids. C) The program asks user to provide an id and prints information about that customer. Make sure to take care for the errors due to invalid id (i.e., id does not present in data). Print “id not found” when id is not found. Save the file as Solution1.java. You can use either File Reader or Scanner classes to read the data in the csv file. Your program should print the following after filling the blanks with the appropriate values Outcome: The total…Some rows of the STUGRADE table of a school are shown below: STU_CODE CLS_CODE GRADE YEAR 291 111 3.1 2010 938 101B 2.3 2011 931 M101 3.3 2040 291 M101 3.4 2018 190 111 2.0 2021 931 321 3.9 2003 Suppose that STU_CODE is the student code (foreign key) and CLS_CODE is the class code (foreign key). Which of the following computes the average for each year of the student with code 931? a. SELECT AVG(GRADE) FROM STUGRADE WHERE STU_CODE = 931 GROUP BY YEAR b. SELECT AVG(GRADE) FROM STUGRADE WHERE STU_CODE = 931. c. SELECT AVG(GRADE) FROM STUGRADE GROUP BY STU_CODE = 931 d. SELECT AVG(GRADE) FROM STUGRADE WHERE STU_CODE = 931 GROUP BY AVG(GRADE)
- For this week's assignment you will allow the user to add employee, view all employees, search employee by ssn, and edit employee information. Below this is what its supposed to look like when completed. I have also included what I started to do but I can't figure out how to add the search by SSN option or the edit employee option. If you can give me a step by step on how to do this in python I would greatly appreciate it.d. Retrieve the name and transcript of each senior student (Class = 5) majoring in CS. A transcript includes course name, course number, credit hours, semester, year, and grade for each course completed by the student. e. Retrieve the names and major departments of all straight-A students (students who have a grade of A in all their courses). f. Retrieve the names and major departments of all students who do not have a grade of A in any of their coursesTrack Addresses Employee Key Values 1234 ЕMP6 ЕMP8 EMP10 EMP12 5678 ЕMP14 EMP16 EMP19 EMP20 9101 EMP26 EMP27 EMP28 EMP29 1121 ЕMP31 ЕMP38 EMP40 EMP42 Index file 1 a. How many comparisions are required to find EMP38 in index file 1 given above b. Update index file by inserting a new employee with employee no. 41. Recreate the index file after updating the index file c. Visualized by recreating the index file how can we reduce camparision to find EMP38