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# Python Basics: Lists for Big Data Analysis

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@FunnyFractal

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• ### How are elements in a 2-D list accessed?

<p>Using both a row index and a column index</p> Signup and view all the answers

### What is the range for the row index in a 2-D list?

<p>0 to the number of rows minus 1</p> Signup and view all the answers

### In the given example, what value is assigned to the element with row index 3 and column index 1?

<p>39</p> Signup and view all the answers

### How is scanning done in a 2-D list?

<p>Using two for loops to scan the rows and columns</p> Signup and view all the answers

### What does the variable 'num_cols' represent when scanning a 2-D list?

<p>The number of elements per row in the list</p> Signup and view all the answers

### What is a list in Python?

<p>A data structure that holds multiple values</p> Signup and view all the answers

### How are list elements accessed in Python?

<p>Using an index value</p> Signup and view all the answers

### What is the size of a list referred to as?

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

### In Python, how are lists indexed?

<p>Base-0 indexing</p> Signup and view all the answers

### Which term is used to refer to accessing one entry within a list?

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

### What is the correct range of index values for a list with 13 elements?

<p>[0, 12]</p> Signup and view all the answers

### How can an element of a list be set to a new value?

<p>By using an assignment statement with the proper index</p> Signup and view all the answers

### What is the result of the expression 'total_ages += ages' in Python?

<p>Adds each element of 'ages' list to 'total_ages'</p> Signup and view all the answers

### What does a two-dimensional (2D) list resemble?

<p>A table or matrix with rows and columns</p> Signup and view all the answers

### How many memory locations are reserved for a 2-D list?

<p>Equal to its number of rows multiplied by number of columns</p> Signup and view all the answers

### What does a for loop do in the context of a list?

<p>It prints each element of the list on a new line</p> Signup and view all the answers

### What is the purpose of using an index when setting elements in a list?

<p>To determine the position of the element in the list</p> Signup and view all the answers

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