Data Science Quiz (Lesson 3 programming)

What are some key concepts in programming that extend across multiple coding languages?

• Sequences (order of instructions)

• Syntax (All programming languages use exact same symbols and structure)

• Selection (pathways that depend on criteria)

• Iteration (looping or repeating)

True/False:

In programming, an output is data the user gives to the computer program.

• True

• Falose

Match the following

• Gives text output to user.

• Variable

• A named storage location that holds data

• Concatenate

• Join two strings together into one line

• Print Function

• Sequence of characters, digits, symbols

• String

• Numerica Data Type

• Integer

When a user inputs data into a program, it is stored as a ___ inside of a variable.

Hint: a Data Type

• Integer

• String

• Concatenation

• Print Function

Putting quotation marks ( " ") around code will turn it into what data type?

• an Integer

• a Boolean

• a String

• a Float

True/False: You can concatenate a string and an integer together.

• True

• False

True/False

If an number is stored as a string data type, you can't do math with that number.

• True

• False

True/False:

When your code doesn't work, you will always get an error message that tells you what is wrong and what line the error occured.

• True

• False

If the user inputs "5" for the number_of_pop_songs variable and "49" for the number_of_hip_hop_songs in this program, what will the variable"total" equal?

• "fifty one"

• 549

• 51

• 495

What function should go in the empty space that says "what goes here" that makes this code work properly

• Nothing, it will work as is

• int( )

• str( )

• input( )