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Student Becomes the Teacher

It's Okay to be Average

When teaching a class, it’s important to take the students’ averages in order to assign grades.

5 / 2 # 2 5.0 / 2 # 2.5 float(5) / 2 # 2.5

The above example is a reminder of how division works in Python.

- When you divide an integer by another integer, the result is always an integer (rounded down, if needed).
- When you divide a float by an integer, the result is always a float.
- To divide two integers and end up with a float, you must first use
`float()`

to convert one of the integers to a float.

### Instructions

**1.**

Write a function `average`

that takes a list of numbers and returns the average.

- Define a function called
`average`

that has one argument,`numbers`

. - Inside that function, call the built-in
`sum()`

function with the`numbers`

list as a parameter. Store the result in a variable called`total`

. - Like the example above, use
`float()`

to convert`total`

and store the result in`total`

. - Divide
`total`

by the length of the`numbers`

list. Use the built-in`len()`

function to calculate that. - Return that result.