Python Pre-defined Functions

What does the random function in Python do?

• Generates random numbers

• Generates random characters

• Generates random letters

• Generates random strings

What does the len function in Python do?

• The len function returns the index of the first occurrence of a specified value in a list.

• The len function returns the sum of all elements in a list.

• The len function returns the number of items in an object.

• The len function returns the length of a string.

What does the round function in Python do?

• The round function in Python rounds a number to a specified number of decimal places or to the nearest whole number.

• The round function in Python returns the square root of a number.

• The round function in Python generates a random number between two given numbers.

• The round function in Python converts a number to a string.

What is the result of len('Hello World')?

• 10

• 5

• 11

• 12

What is the result of round(3.14159, 2)?

• 3.13

• 3.15

• 3.14

• 3.1

Which function is used to generate random numbers in Python?

• random.random

• random.randint

• random.choice

• random.shuffle

What is the result of round(2.5)?

• 2

• 3

• 2.5

• 0

numbers = [1,2,3,4,5]

What is the result of len([numbers])?

• 1

• 10

• 5

• 15

Which of the following is a benefit of using pre-defined functions?

• Reduces code readability

• Increases the chance of errors

• Saves development time

• Needs to be defined by the programmer

Which of the following is a pre-defined function in Python?

• 
  len()

• chrlen()

• 
  chrlength()

• length()