# Just Weight and See

#1

There is annoying rounding issue I am receiving when running the code:
get_average(alice) returned [91.14999999999999] instead of the expected 91.15

How do I get the returned value to be to 2 decimal places?

This is my code:
lloyd = {
"name": "Lloyd",
"homework": [90.0, 97.0, 75.0, 92.0],
"quizzes": [88.0, 40.0, 94.0],
"tests": [75.0, 90.0]
}
alice = {
"name": "Alice",
"homework": [100.0, 92.0, 98.0, 100.0],
"quizzes": [82.0, 83.0, 91.0],
"tests": [89.0, 97.0]
}
tyler = {
"name": "Tyler",
"homework": [0.0, 87.0, 75.0, 22.0],
"quizzes": [0.0, 75.0, 78.0],
"tests": [100.0, 100.0]
}

def average(numbers):
total = 0
total = total + sum(numbers)
total = float(total)
return (total / len(numbers))

def get_average(student):
homework = average(student['homework'])
quizzes = average(student['quizzes'])
tests = average(student['tests'])
return [homework * 0.1 + quizzes * 0.3 + tests * 0.6]

#2

here...

`return [homework * 0.1 + quizzes * 0.3 + tests * 0.6]`

when you surround something with [] it's meaning changes.

If you surround a number with Square brackets,It becomes a list with single item.
for ex..

`x = [2]`

It was expecting a number but you're returning a list with a single item.

#3

2 posts were split to a new topic: Just weight and see

#5

A post was merged into an existing topic: Just weight and see

#6

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.