Data Science and Machine Learning with R - Conditional Statements
Interactive Video
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of conditional statements in programming?
To perform arithmetic operations
To create user interfaces
To define control flow and decision-making
To store data
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an 'if' statement, what happens if the condition evaluates to true?
The code inside the 'if' block is executed
The program terminates
The condition is re-evaluated
The code inside the 'if' block is skipped
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it unnecessary to use 'true' as a condition in an 'if' statement?
Because it is not supported in R
Because it causes a syntax error
Because it will always execute the code block
Because it will never execute the code block
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'else' statement do in a conditional structure?
Ends the program
Repeats the 'if' condition
Executes code when the 'if' condition is false
Executes code when the 'if' condition is true
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you correctly compare two variables for equality in R?
Using the 'equals()' function
Using a double equal sign '=='
Using a triple equal sign '==='
Using a single equal sign '='
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What logical operator would you use to check if either of two conditions is true?
AND
OR
NOT
XOR
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of chaining 'if', 'else if', and 'else' statements?
To ensure all conditions are true
To simplify code by removing conditions
To handle multiple conditions with only one block executing
To execute multiple code blocks simultaneously
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