Data Science for Non-Programmers/

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Solution Review: Average of a List

Solution Review: Average of a List

This lesson will explain the solution to the exercise in the previous lesson.

We'll cover the following...

Solution

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# function to compute average of a list
def average(input_list):
    # sum calculation
    sum_list = 0
    for i in input_list:
        sum_list = sum_list + i 
    # average calculation
    avg = sum_list /len(input_list)
    return avg
sample_list = [2,4,5,1]
avg_list = average(sample_list)
print(avg_list)

We define the average function in lines 2-8. Let’s break this function down. For computing the average of the list, we need to find the sum of the numbers in the list and the length of the list. We already know we can use the len function to compute ...