A corporation is attempting to expand its employee mental health and wellness initiative via an awareness campaign and is anticipating that up to four times as many employees will participate next year compared to the previous year. The Human Resources director will eventually need to be able to check whether a given employee has signed up, which means searching through the list of everyone who is participating in the campaign. Assuming the list is sorted and the HR director is using binary search, what will be the effect on the number of operations in the worst case if the list is four times longer than before? The number of operations will not change. O This will require two more operations. This will require twice as many operations. O This will require four times as many operations. A factory is planning on manufacturing a vehicle that gives customers the following assistive device customization features: (a) an optional ramp for wheelchair acess, (b) either a hand control or foot pedals for braking and acceleration, and (c) optional removable seats. How many vehicle models should the factory be prepared to make? Each vehicle can have some, all, or none of these features. 03 06 08 9

A corporation is attempting to expand its employee mental health and wellness initiative via an awareness campaign and is anticipating that up to four times as many employees will participate next year compared to the previous year. The Human Resources director will eventually need to be able to check whether a given employee has signed up, which means searching through the list of everyone who is participating in the campaign. Assuming the list is sorted and the HR director is using binary search, what will be the effect on the number of operations in the worst case if the list is four times longer than before? The number of operations will not change. O This will require two more operations. This will require twice as many operations. O This will require four times as many operations. A factory is planning on manufacturing a vehicle that gives customers the following assistive device customization features: (a) an optional ramp for wheelchair acess, (b) either a hand control or foot pedals for braking and acceleration, and (c) optional removable seats. How many vehicle models should the factory be prepared to make? Each vehicle can have some, all, or none of these features. 03 06 08 9

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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Problem 2: Create a Dataframe whose index is winery and whose values is the maximum number of points a wine costing that much was given in a review. Sort the values by points, descending (so that 80 points is at the bottom and 100 points is at the top).
A table called "game1" contains three columns and twenty rows, but "game2" has the same column as game1 (ie 3) and fifteen rows. Both tables have 5 rows in common. What is the degree and cardinality of the resulting table if we take union?
Richardson Ski Racing (RSR) sells equipment needed for downhill ski racing. One of RSR's products is fencing used on downhill courses. The fence product comes in 150-foot rolls and sells for $215 per roll. However, RSR offers quantity discounts. The following table shows the price per roll depending on order size: Quantity Ordered From To Price per Roll 1 30 $215 31 60 $195 61 ཙཙ 120 $175 121 and up $155 Click on the datafile logo to reference the data. (a) Use the VLOOKUP function with the preceding pricing table to determine the total revenue from these orders. $ (b) Use the COUNTIF function to determine the number of orders in each price bin. From To Price per Roll Number of Orders 1 30 $215 31 60 $195 61 120 $175 121 and up $155 172 12
Consider the following data tabie named Student Student Nane Number Sex 3412 r Nina Mike 1234 M Nelson 2341 F Hare is anocher daca table named Teaching Assistants Subject ID Phrys ies Chenistry 1111 Mathemat ies 2341 3412 What is the count of rows returned in the folovwingjoin operation? Student parber o Teaching Assistants Only erter a single integer. Do not include any estra spaces or newines.
Question:1 Show all data from employee table where name should be in ascending and salary in descending order. Question:2 Show the total length of (eno, deptno), joined it and rename by function from the employee table? Question:3 Show the ename first 3 alphabets of manager? Question:4 Write a query that show the manager data like this.ename jobJONES ***MANAGER BLAKE ***MANAGER Question:5 Calculate the percentage of any student and round to 0 digit? Question:6 Show the last date of December 2014? Question:7 Show the date of next data base class and rename by cs-400? Question:8 Convert today date to character?
ESSMENTS MAtlab Activity 5 Solving Equations Using Matrix Perform the following Matrix Operations for the predefined matrices. Given the System of equations: 2x+ 4y – 5z+3w = -33 3x + 5y – 2z+ 6w = -37 x- 2y+ 4z - 2w = 25 3x +5y- 3z+3w = -28
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TODO 12 Let's now split our input data X and labels y into a train and test set using the train_test_split() function (docs). Here we'll use the 80-20 split rule where we use 80% of the data for training and 20% for testing. Lastly, we'll seed our split using the random_state keyword argument which will make sure we create the same split every time we run the function. Use the train_test_split() function to get a train and test split. Store the output into X_train, X_test, y_train, and y_test. Pass the required arguments X and y. Further specify we want to use 20% of the training data by setting the test_size keyword argument. Lastly, pass the keyword argument random_state=42 to set the random seed so we get the same split every time we run this code. Print the shape for X_train. Print the shape for y_train. Print the shape for X_test. Print the shape for y_test. # TODO 12.1X_train, X_test, y_train, y_test = todo_check([ (X_train.shape == (413, 29), 'X_train does not have the…
A table called "game1" contains three columns and twenty rows, but "game2" has the same column as game1 (ie 3) and fifteen rows. Both tables have 5 rows in common. What is the degree and cardinality of the resulting table if we take union?
ABC department store keeps information on departments, products, and employees. For each department, the department ID, name and office phone extension are stored. For each employee, the employee ID, and name are stored. A department can have many employees and each employee can be assigned to multiple departments. Each department is managed by one employee. Each department sells many products and each product is sold by only one department. Products can be shoes, clothes, or other miscellaneous. The product ID and price are stored for each product. No additional data is stored for the miscellaneous products. For all shoes, shoe type, shoe color and shoe size are also stored. For all clothes, the season (one of: winter, spring, summer, year-round) is stored. Clothes can be shirts, pants or dresses. For shirts, collar size, sleeve size and type are stored. For pants, waist size, length and type are stored. For dresses, size, and type are stored. Draw the Crow’s foot ERD (including all…
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MariaDB [dreamhome]> select * from Staff1; | staffNo | FName | 1Name | position | sex | Mary | Howe | | David | Ford | | Ann | Beech | Susan | Brand | Assistant | F Supervisor | M Assistant | F Manager | F | | John | White | Manager | M | Julie | Lee | Assistant | F | SA9 | SG14 | SG37 Find all staff fname and direct supervisor's fname. | SG5 | SL21 | SL41 | staff | supervisor | | Mary | Susan | David | Susan | Ann | Susan | Susan | John | Julie | John Output salary | branchNo | superno | | SG5 | SG5 | SG5 | DOB | | 1970-02-19 | 9000.00 | B007 | 1958-03-24 | 18000.00 | B003 | 1960-11-10 | 12000.00 | B003 1940-06-03 | 24000.00 | B003 | 1945-10-01 | 30000.00 | B005 | 1965-06-13 | 9000.00 | B005 SL21 | NULL | SL21