$1.$ Assume that the numbers of value categories for random variables D and T are n and m$,$

respectively.

$1\mathrm{.}1.$ Write a Python code to calculate marginal probabilities from the conditional probabilities and

the marginal probabilities.

Variables:

count: Joint counts count$($D$,$T$).$

p: Joint probabilities p $=$ P$($D$,$T$).$

dP$,$ tP: Marginal probabilities dP $=$ P$($D$)$ and tP $=$ P$($T$)$

dCP$,$ tCP: Conditional probabilities dCP $=$ P$($T$|$D$)$ and tCP $=$ P$($D$|$T$)$