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6.1. Choose some var columns as features. Explain why you choose those columns. It can be common sense, or statistics. 2. ...

, or statistics. 2. Be careful with those missing data. They can be empty string, -1, -98, -99, etc. You will need to check the data and var dictionary to make your best judgement. 2. Use those selected columns to predict the "loan_default" column. You will try 3 machine learning algorithms * Logistic regression * KNN * Naive Bayes Classifier 3. For each algorithm, you should select features and fit the model, then predict and evaluate. 4. Try different techniques to improve the model score. You can choose different columns, transform data and normalize data. Show your improvements.
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7.#include #include int main (int argc, char* argv[]) { //Read Value from command line arguments ...

om command line arguments int N = atoi(argv[1]); int i; //Loop from 0 to N for (i= 0; i <= N; ++i) printf("%d ", i); //printing new line printf('\n'); return 0; }
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Basics of Android: 


Android is an Operating System that is primarily designed for touchscreen mobile devices which include smartphones and tablets. It is based on the Linux kernel and was developed by Open Handset Alliance which was commercially sponsored by Google.


Basics of Android Sample Questions:



Question 1: The broadcast receiver has a time limit of how many seconds in Android?


A) 5

B) 10

C) 15

D) 20


Answer: 10

Explanation: The operation must be performed by the broadcast receiver otherwise AND will occur.


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Question 2: Which of the following features should be considered by developers while creating an Android Application?


A) Device Features 

B) Screen Size

C) Platform Version

D) All of these

Answer: All of these

Explanation: Below mentioned features should be considered by developers while creating an Android Application:
Device Features 
Screen Size
Platform Version
Input Configuration, etc



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Question 3: Is it possible in android to have an activity without any UI?


A) Yes

B) No

C) Depends on compiler

D) None of these

Answer: Yes

Explanation: It is possible in android to have an activity without any UI. It would not be visible but it would add some functionalities in the background.


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Question 4: Which of the following correctly describes threads in Android?


A) Dispatchable independent unit

B) Background activity

C) Services

D) None of these

Answer: Dispatchable independent unit

Explanation: Threads in android are dispatchable independent units. It handles background services and functionalities. Moreover, they are concurrent executable units.



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Question 5: Which of the following is not a method of Base Adapter?


A) getItem()

B) getList()

C) getCount()

D) None of these


Answer: None of these

Explanation: Base Adapter has the following methods:



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Question 6: Which of the following is not a part of the Android activity life cycle?


A) onStart()

B) onDestroy()

C) onResume()

D) None of these

Answer: None of these

Explanation: Following are part of android life cycle:



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Question 7: Which of the following kernel is used in Android?



B) Windows

C) Linux

D) None of these


Answer: Linux

Explanation: Android is based on customized Linux Kernel. It is also known as the heart of the android architecture which is present at the root of android architecture. 


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Question 8: Open Handset Alliance was announced in which year?


A) 2005

B) 2006

C) 2007

D) None of these


Answer: 2007

Explanation: Open Handset Alliance was announced in 2007 by Google.



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Question 9: Which of the following layer is topmost in android architecture?


A) Applications Framework

B) Application Layer

C) Linux Kernel

D) None of these

Answer: Applications Framework

Explanation: Applications Framework consists of Android APIs, resources, locations, package managers, etc. It provides a number of classes and interfaces for the development of the android applications. 


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Question 10: Which of the following is the Android’s built-in database?



B) Oracle 

C) MongoDB

D) SQLite


Answer: MySQL

Explanation: SQLite is a relational database and is open source. It provides various features to android devices which include storing, manipulating, and accessing data. Performing database setup is not required as it is embedded in android by default.


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