Find the mean of the random variables described by each of the following probability mass functions.\
Only decimal value is allowed for your answer, that is, no fraction form is allowed.\
Valid Number Format: 0.00123, 1.23E-3, 1.23*10^-3.\
The required precision for your answer is 4\
Use Python for Calculation.\
1.\
$P_K(k_0) = \frac{1}{k_0 + 1}, k = 0, 1, 2, \dots, k_0; k_0 = 100$\
$\bullet E[K] = $\
2.\
$P_M(m) = \frac{2m}{m_0(m_0 + 1)}, m = 0, 1, 2, \dots, m_0; m_0 = 10$\
$\bullet E[M] = $\
3.\
$P_N(n) = (\frac{1}{2})^n, n = 1, 2, 3, \dots$\
$\bullet E[N] = $\
4.\
$P_Q(q) = \frac{(q - 1)}{q_0 - 1}(\frac{1}{2})^{q}, q = q_0, q_0 + 1, q_0 + 2, \dots; q_0 = 10$\
$\bullet E[Q] = $
