Rounding Floating-Point Numbers in Python
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Questions and Answers

Which data type in Python represents values that are whole numbers?

  • String
  • Integer (correct)
  • Floating-point
  • Boolean
  • What error message is likely to be displayed if a string literal is missing its final single quote?

  • TypeError: Incomplete string
  • NameError: Undefined string
  • SyntaxError: EOL while scanning string literal (correct)
  • ValueError: Missing closing quote
  • Which mathematical operator in Python can be used for both multiplication and string replication?

  • / (Division)
  • * (Multiplication) (correct)
  • - (Subtraction)
  • + (Addition)
  • What does the + operator do when applied to two string values in Python?

    <p>It concatenates the strings</p> Signup and view all the answers

    When evaluating expressions in Python, which operator takes precedence over all others?

    <p>** (Exponentiation)</p> Signup and view all the answers

    What is the term used to describe combining values with operators where the result is always a single value?

    <p>Expression</p> Signup and view all the answers

    What does commenting out code mean?

    <p>Using comments to temporarily disable code</p> Signup and view all the answers

    How does Python treat a blank line after a comment?

    <p>Ignores it</p> Signup and view all the answers

    What does the print() function do in Python?

    <p>Displays text on the screen</p> Signup and view all the answers

    What are the quotes around a string value used for in Python's print() function?

    <p>Mark the beginning and end of the string</p> Signup and view all the answers

    What does an argument refer to in a function call?

    <p>The value passed to the function</p> Signup and view all the answers

    What does the input() function do in Python?

    <p>Waits for user input from the keyboard</p> Signup and view all the answers

    What is the purpose of using the int() function in this context?

    <p>To convert the string returned from input() to an integer</p> Signup and view all the answers

    Why is it necessary to add 1 to the value obtained from int(myAge)?

    <p>To get the correct age value after adding a year</p> Signup and view all the answers

    What does the expression str(int(myAge) + 1) evaluate to?

    <p>A string value</p> Signup and view all the answers

    Why is it mentioned that an integer can be equal to a floating point?

    <p>To explain type equivalence in Python</p> Signup and view all the answers

    What does the text imply by mentioning 'rounding a floating-point number up'?

    <p>Rounding to the nearest whole number above</p> Signup and view all the answers

    Why is it necessary to use str() function for printing?

    <p>To convert numbers to strings for concatenation</p> Signup and view all the answers

    What is a parameter in the context of defining functions in Python?

    <p>A variable that stores an argument when a function is called</p> Signup and view all the answers

    What does the sep keyword argument in the print() function do?

    <p>Replace the default separator with a specified string</p> Signup and view all the answers

    What happens to the value stored in a parameter when a function returns?

    <p>It is forgotten</p> Signup and view all the answers

    In Python, where do global variables exist?

    <p>Outside all functions, in the global scope</p> Signup and view all the answers

    What is a return statement in Python used for?

    <p>Specifying the return value of a function</p> Signup and view all the answers

    What happens to local variables when a function ends?

    <p>They are destroyed and their values are forgotten</p> Signup and view all the answers

    Which term refers to the variable that an argument is stored in when a function is called?

    <p>Parameter</p> Signup and view all the answers

    How many global scopes are there in a Python program?

    <p>One, created at the start of the program and destroyed at the end</p> Signup and view all the answers

    Can code in the global scope access local variables?

    <p>No, they can only access other global variables</p> Signup and view all the answers

    What is the value that a function call evaluates to referred to as?

    <p>Return value</p> Signup and view all the answers

    What is the term used for a variable existing in a local scope?

    <p>Local variable</p> Signup and view all the answers

    What should a return statement consist of in Python?

    <p>The return keyword and the value or expression the function should return</p> Signup and view all the answers

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