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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NB: You will use only structure variable to solve this problem. You are discouraged to use array of structure.
struct Player { string firstName; string lastName; int hits; int runs; }; int main() { Player p = { "Jackie", "Robinson", 1518, 947 }; Player team[24]; Player *tPtr = team; team[0] = p; // INSERT CODE HERE } The statement tPtr = team+9; will assign the same memory address to tPtr as the statement tPtr = &(team[9]);
Treasure Hunter description You are in front of a cave that has treasures. The cave canrepresented in a grid which has rows numbered from 1to , and of the columns numbered from 1 to . For this problem, define (?, )is the tile that is in the -th row and -column.There is a character in each tile, which indicates the type of that tile.Tiles can be floors, walls, or treasures that are sequentially representedwith the characters '.' (period), '#' (hashmark), and '*' (asterisk). You can passfloor and treasure tiles, but can't get past wall tiles.Initially, you are in a tile (??, ). You want to visit all the treasure squares, andtake the treasure. If you visit the treasure chest, then treasurewill be instantly taken, then the tile turns into a floor.In a move, if you are in a tile (?, ), then you can move tosquares immediately above (? 1, ), right (?, + 1), bottom (? + 1, ), and left (?, 1) of thecurrent plot. The tile you visit must not be off the grid, and must not be awall patch.Determine…
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Assume that int a[ 2 ][ 2 ] = { { 1, 2 }, { 3, 4 } }; the value of a[ 1, 1 ] = ______;
Drink Machine Simulator Write a program that simulates a soft drink machine. The program should use a structure that stores the following data: Drink Name Drink Cost Number of Drinks in Machine The program should create an array of five structures. The elements should be initialized with the following data: Drink Name Cost Number in Machine Cola .75 20 Root Beer .75 20 Lemon-Lime .75 20 Grape Soda .80 20 Cream Soda .80 20 Each time the program runs, it should enter a loop that performs the following steps: A list of drinks is displayed on the screen. The user should be allowed to either quit the program or pick a drink. If the user selects a drink, he or she will next enter the amount of money that is to be inserted into the drink machine. The program should display the amount of change that would be returned, and subtract one from the number of that drink left in the machine. If the user selects a drink that has sold out, a message…
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in c language typedef _people { int age; char name[ 32 ] ; } People_T ; People_T data [ 3 ]; Using string lib function, Assign 30 and Cathy to the first cell, Assign 40 and John to the second cell and Assign 50 and Tom to the third cell
def calculate_growth_cycle(plant_name): if(plant_name == "strawberry"): print("### The life cycle of a strawberry ###\nA seed takes 110 days to reach maturity.") elif(plant_name == "cucumber"): print("### The life cycle of a cucumber ###\nA seed takes 76 days to reach maturity.") elif(plant_name == "potato"): print("### The life cycle of a potato ###\nA seed takes 120 days to reach maturity.") else: print('Your plant is available, please try "strawberry", "cucumber" or "potato"') Plants Growth Cycle Learning Objectives In this lab, you will practice: Defining a function to match the given specifications Calling the function in your program Using if statements (can combine them with dictionaries) Instructions For every plant, there is a growth cycle. The number of days that it takes starting from being a seed and ending in being a fruit is what is called the growth cycle. Write a function that takes a plant's name as an argument and…
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