Question 16 Here is a preview of the DataFrame containing sessions for a web app. DEVICE active login.id MOBILE yes 12347 b DESKTOP no 11821 Complete the code to return the output. al'device' at 1.applyiste.capitalize printi S b DEVICE active login.id device. MOBILE yeu 12347 Mobile 11821 Desktop DESKTOP A (B "device" (С DEVICE D "DEVICE Question 17 Give the resulting value when the following code is run. r=5 V-4/3 (math.pl (3) print (V) Note: Provide the answer in 4 significant figures. Your Answer: 523.6 Question 18 Which of the following functions is used to convert a list to an array? A np() (B) numpy array() D) listo Question 19 Titles are automatically generated by the show() function. T True (F) False Question 20 What is the syntax used in replacing NaN values with zeros in a dataset? Select all that applies. A notna(0) (B) replace(np.nan, 0) C dropna(0) D fillna(0)

Question 16 Here is a preview of the DataFrame containing sessions for a web app. DEVICE active login.id MOBILE yes 12347 b DESKTOP no 11821 Complete the code to return the output. al'device' at 1.applyiste.capitalize printi S b DEVICE active login.id device. MOBILE yeu 12347 Mobile 11821 Desktop DESKTOP A (B "device" (С DEVICE D "DEVICE Question 17 Give the resulting value when the following code is run. r=5 V-4/3 (math.pl (3) print (V) Note: Provide the answer in 4 significant figures. Your Answer: 523.6 Question 18 Which of the following functions is used to convert a list to an array? A np() (B) numpy array() D) listo Question 19 Titles are automatically generated by the show() function. T True (F) False Question 20 What is the syntax used in replacing NaN values with zeros in a dataset? Select all that applies. A notna(0) (B) replace(np.nan, 0) C dropna(0) D fillna(0)

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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