False Positive Rate from Counts

Problem

The false positive rate is FP / (FP + TN), equal to 1 minus specificity. Return 0.0 when the denominator is zero.

Given the counts, return the rate.

Hint

It is the complement of specificity.

case 1

in: [1,9]

expected: 0.1

case 2

in: [5,5]

expected: 0.5

case 3

in: [0,4]

expected: 0

Starter codePython

def false_positive_rate_from_counts(fp, tn):
    # Your code here
    pass

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