Purdue CNIT 155 Final Exam (Python) || with 100% correct
answers.
What is a List? correct answers A data structure that can store many values of under one name
Which is an example of how to create an empty list? correct answers Variable = []
Variable = list()
Which is an example of how to create a list with predefined values? correct answers colors =
["red, "yellow", "blue"]
To create a list with predefined values, you have to.... correct answers Put a sequence of items in
[]
What does list1.append(elem) do? correct answers Adds a single element to the end of the list
What does list1.insert(index, elem) do? correct answers Inserts the element elem at the given
index, shifting elements to the right
What does list1.extend(list2) do? correct answers Add the elements in list2 to the end of the list.
T or F: The extend method is not only used with a list. correct answers False
T or F: Using + or += on a list is similar to using the extend method. correct answers True
How do you access the individual element in a list using an index? correct answers list1[index]
,What are characteristics of Positive Indexes? correct answers First element in the list has index 0,
second element has index 1, and n'th element is n-1
What are characteristics of Negative Indexes? correct answers Identify positions relative to the
end of the list, index -1 identifies the last element, and -2 identifies the next to last element, etc.
What does Function do? correct answers Is a description
What does len do? correct answers Returns the number of items in the list
What does min do? correct answers Returns the minimum among the elements in the list
What does max do? correct answers Returns the maximum among the elements in the list
What does sum do? correct answers Returns the sum of all the elements in the list. (applies to list
of numerical values only)
Given a list, you may use ________ to randomize the order of the elements in a list. correct
answers Shuffle
What do you type to import the shuffle function and use the shuffle function with a list? correct
answers from random import shuffle
shuffle(list1)
You can refer to elements of a list using the... correct answers Subscript syntax
T or F: The code below makes third have a value of 83.0
scores = [75.0, 68.5, 83.0]
, third = scores[2] correct answers True
T or F: Negative indices count from the right end. correct answers True
What is the value of third after running the code below?
scores = [75.0, 68.5, 83.0]
third = scores[-1] correct answers 83.0
Which is an example of negative indices? correct answers scores = [75.0, 68.5, 83.0]
third = scores[-1]
Which is an example of positive indices? correct answers scores = [75.0, 68.5, 83.0]
third = scores[2]
Slicing gives a... correct answers List of elements
Subscripting gives a... correct answers Single element
Which is an example of slicing a list? correct answers scores = [68.5, 83.0]
exams = scores[1:3]
T or F: Each list is an object. correct answers True
Which is an example of how you call a list method? correct answers
list.methodName(arguments)
answers.
What is a List? correct answers A data structure that can store many values of under one name
Which is an example of how to create an empty list? correct answers Variable = []
Variable = list()
Which is an example of how to create a list with predefined values? correct answers colors =
["red, "yellow", "blue"]
To create a list with predefined values, you have to.... correct answers Put a sequence of items in
[]
What does list1.append(elem) do? correct answers Adds a single element to the end of the list
What does list1.insert(index, elem) do? correct answers Inserts the element elem at the given
index, shifting elements to the right
What does list1.extend(list2) do? correct answers Add the elements in list2 to the end of the list.
T or F: The extend method is not only used with a list. correct answers False
T or F: Using + or += on a list is similar to using the extend method. correct answers True
How do you access the individual element in a list using an index? correct answers list1[index]
,What are characteristics of Positive Indexes? correct answers First element in the list has index 0,
second element has index 1, and n'th element is n-1
What are characteristics of Negative Indexes? correct answers Identify positions relative to the
end of the list, index -1 identifies the last element, and -2 identifies the next to last element, etc.
What does Function do? correct answers Is a description
What does len do? correct answers Returns the number of items in the list
What does min do? correct answers Returns the minimum among the elements in the list
What does max do? correct answers Returns the maximum among the elements in the list
What does sum do? correct answers Returns the sum of all the elements in the list. (applies to list
of numerical values only)
Given a list, you may use ________ to randomize the order of the elements in a list. correct
answers Shuffle
What do you type to import the shuffle function and use the shuffle function with a list? correct
answers from random import shuffle
shuffle(list1)
You can refer to elements of a list using the... correct answers Subscript syntax
T or F: The code below makes third have a value of 83.0
scores = [75.0, 68.5, 83.0]
, third = scores[2] correct answers True
T or F: Negative indices count from the right end. correct answers True
What is the value of third after running the code below?
scores = [75.0, 68.5, 83.0]
third = scores[-1] correct answers 83.0
Which is an example of negative indices? correct answers scores = [75.0, 68.5, 83.0]
third = scores[-1]
Which is an example of positive indices? correct answers scores = [75.0, 68.5, 83.0]
third = scores[2]
Slicing gives a... correct answers List of elements
Subscripting gives a... correct answers Single element
Which is an example of slicing a list? correct answers scores = [68.5, 83.0]
exams = scores[1:3]
T or F: Each list is an object. correct answers True
Which is an example of how you call a list method? correct answers
list.methodName(arguments)
