Assume that the data in the following table are stored in a pandas DataFrame df.Surname Shoe Size (UK) Height (cm) Age Driver's Licence? Number of Children Country of ResidenceForenameO MariaTahir6.017179 False0Peru1 KarimaSheikh6.020491 False1NaN2 ThomasGao6.019841 True10Kenya3 AhmedRamos7.517045 True1Peru4 JuliaSuzuki5.016648 True3Mexico5 AnnaKumar8.518285 False1Peru6 Mamadou Soto6.016595 True47 Valentina Mohammed 5.017346 True1United StatesChinaMatch the following expressions with the number of entries (rows) of the resulting DataFrame/Series, i.e., the output of len(...) when replacing'.expression.'by the df.dropna()df.head(4)df.loc[:, ['Forename', 'Height (cm)']]df [[ 'Number of Children']]df [df ['Number of Children'] > 3]

Therefore, the matches are as follows:df.dropna() - 6 entriesdf.head(4) - 4 entriesdf.loc[:,…

Answered: Assume that the data in the following…

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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Task B. Import the data shown in pictures into the two tables created.
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MySQL CREATE TABLE students ( id INT PRIMARY KEY, first_name VARCHAR(50), last_name VARCHAR(50), age INT, major VARCHAR(50), faculty VARCHAR(50)); CREATE TABLE location ( id INT PRIMARY KEY, name VARCHAR(50), rooms INT); CREATE TABLE faculty ( id INT PRIMARY KEY, name VARCHAR(50), department_id INT); 4. Find the number of employees in each department who get no commission or have salary less than5000.5. Find the maximum salary of employees in each department that the employee was hired 15 yearsbefore now. *hint: user TIMESTAMPDIFF(<unit type>,<Date_value 1>,<Date_value 2>), the unitcan be YEAR, MONTH, DAY, HOUR, etc...6. Find the last name of all employees that were not hired on Tuesday *hint: (UseDATE_FORMAT() function amd the format you need is %W, also use UPPER()7. Find the number of employees in each department who have a manager.8. Find the number of employees for each manager whose employees' minimum salary is greaterthan 5000.9. Find the number of…
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ERD:- PK CHECKOUT Check Num FK1 Book_Num FK2 Pat_ID Check Out Date Check_Due Date Check_In_Date PK BOOK Book Num Book Title Book_Year Book_Cost Book_Subject FK1 Pat_ID -H- PATRON PK Pat ID Pat_FName Pat_LName Pat_Type WRITES PK,FK1 Book Num PK,FK2 Au ID AUTHOR PK AU ID Au_FName Au_LName Au_BirthYear
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