Mode

Problem

Return the most frequent value in data. On ties, return the smallest of the tied values. Return None for an empty list.

Hint

Count occurrences with a dictionary, then take the smallest key with the maximum count.

case 1

in: [[1,2,2,3]]

expected: 2

case 2

in: [[4,4,2,2,1]]

expected: 2

case 3

in: [[3,1,3,2,3]]

expected: 3

case 4

in: [[7]]

expected: 7

case 5

in: [[-1,-1,2]]

expected: -1

Starter codePython

def mode(data):
    # Your code here
    pass

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