We can use the joint and marginal probabilities to compute ...

[leo leo]

We can use the joint and marginal probabilities to compute conditional probabilities, for which a formula is available.
  Indicate whether the statement is true or false

Question 2

In general, a posterior probability is calculated by adding the prior and likelihood probabilities.
  Indicate whether the statement is true or false

[kishoreddi]

Answer to Question 1

T

Answer to Question 2

F

[leo leo]

Thanks for the timely response, appreciate it

[scikid]

Excellent