Trimmed Mean

Problem

Return the mean after removing the k smallest and k largest values. Return 0.0 if data is empty or 2*k >= n. With k = 0 this is the ordinary mean.

Hint

Sort, slice off k values from each end, then average.

case 1

in: [[1,2,3,4,5,100],1]

expected: 3.5

case 2

in: [[1,2,3,4,5],0]

expected: 3

case 3

in: [[10,1,9,2,8,3],2]

expected: 5.5

case 4

in: [[1,2],1]

expected: 0

case 5

in: [[],0]

expected: 0

Starter codePython

def trimmed_mean(data, k):
    # Your code here
    pass

5 test cases · run your code against them in the editor