Help with these two questions

Question 4 (4 points) The sum of the probabilities for all the experimental outcomes in a probability distribution will always be less than 1 (100%). True False Question 8 (4 points) In an unbalanced transportation problem where total supply exceeds total demand, the supply constraints will typically have 2" inequalities in keeping with our convention of writing flows out of nodes with negative constraint coefficients and expressing the demand at the node as a positive number. True False