Independence Check

Problem

Return True when two events are independent, i.e. when |P(A and B) - P(A) * P(B)| < 1e-9.

Inputs are p_a, p_b, and the joint probability p_ab.

Hint

Compare the joint probability against the product of the marginals.

case 1

in: [0.5,0.4,0.2]

expected: true

case 2

in: [0.5,0.4,0.3]

expected: false

case 3

in: [0,0.5,0]

expected: true

case 4

in: [1,1,1]

expected: true

Starter codePython

def independence_check(p_a, p_b, p_ab):
    # Your code here
    pass

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