write a python function that finds the average of that column. The lists will contain None values and they cannot be taken out. example: def find _mean(datalist): ........ return [] find _mean([['a', 'b'], [1, -2], [-3, 4], [None, 6], [7, 8]]) output: [1.6666666666666667, 4.0] find _mean([['e', 'f', 'g'], [None, 2, 3], [None, -4, -2], [None, 8, 9]]) output: [None, 2.0, 3.333333333333333]
write a python function that finds the average of that column. The lists will contain None values and they cannot be taken out. example: def find _mean(datalist): ........ return [] find _mean([['a', 'b'], [1, -2], [-3, 4], [None, 6], [7, 8]]) output: [1.6666666666666667, 4.0] find _mean([['e', 'f', 'g'], [None, 2, 3], [None, -4, -2], [None, 8, 9]]) output: [None, 2.0, 3.333333333333333]
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
write a python function that finds the average of that column. The lists will contain None values and they cannot be taken out.
example:
def find _mean(datalist):
........
return []
find _mean([['a', 'b'], [1, -2], [-3, 4], [None, 6], [7, 8]])
output:
[1.6666666666666667, 4.0]
find _mean([['e', 'f', 'g'], [None, 2, 3], [None, -4, -2], [None, 8, 9]])
output:
[None, 2.0, 3.333333333333333]Expert Solution
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