def bernoulli_param(N, T, I_T, F_N):
    """ Bernoulli parameter definition (Maximum Likelihood)
    
    Args:
        N   : Total number of people in the city
        T   : Number of people in the test sample
        I_T : Number of infected people in the test sample
        F_N : Total number of fatalities in the city
    
    Returns:
        p_T : Bernoulli probabilities
        p_I : --|--
        p_F : --|--
    """

    p_T = T   / N   # Testing rate Bernoulli parameter
    p_I = I_T / T   # Infection rate Bernoulli parameter
    p_F = F_N / N   # Fatality Bernoulli parameter

    return p_T, p_I, p_F