Python Lists

Data Structures are used to group multiple items?

• True

• False

How many values can a variable store?

• 4

• 11

• 456743

• 1

Why would you use lists in a program instead of variables?

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Answer explanation

You would use lists in a program instead of a variable when you have more than one value to store and it can be grouped together. It is also more efficient to use a list. It is much better to group the values together in a single variable (list). That is what data structure is - an organised collection of Items.

Which brackets are used to create Lists?

• ()

• {}

• []

Answer explanation

Lists are created using square brackets and have commas separating the different data values.

Spot the error in this program:

friends = Alice", "Bob","Liz"]

• friends =

• "Bob",

• "Liz"]

• Alice"

Answer explanation

friends = ["Alice", "Bob","Liz"]

What does .append () do?

• To add a new item to a specified position in the list.

• To delete the item specified.

• To find the index of a specific item.

• To add a new item to the end of the list.

What does .insert() do?

• To find the index of a specific item.

• To delete the item specified.

• To add a new item to a specified position in the list.

• To find the index of a specific item.

what does .remove() do?

• To add a new item to a specified position in the list.

• To find the index of a specific item.

• To add a new item to a specified position in the list.

• To delete the item specified.

What is a Variable

• Takes and input from a user.

• Represents a particular value held in the memory.

• Displays the results.

What is a syntax error?

• A type of encryption.

• A sequence of lines.

• Part of the code breaks the rules of the programming language.

• A sequence of characters.