Write a function average that accepts a tuple that contains integer elements as an argument and returns the average value of the elements within the argument.
for example, average((1, 2, 3)) = 2
for example, average((-3, 2, 8, -1)) = 1.5
my answer:
def average(values):
if values == (1,2,3):
return (1+2+3)/3
elif values == (-3,2,8,-1):
return (-3+2+8-1)/4
Why wrong? How to do? Thanks!!!
Your function only works for those two specific inputs. The goal is to write a function that returns the correct average for all valid inputs.
You should use python's builtin functions sum and len for this
def average(values):
return sum(values)/len(values)
For Python 2 you have to wrap the sum(values) (or the len(values), either part of the division is good) inside a call to float.
Starting with Python 3.4 you can use the function mean from the statistics module.
import statistics
def average(values):
return statistics.mean(values)
or shorter as your function is just another name for statistic's mean
average = statistics.mean
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments