An incomplete contingency table is provided. Use this table to complete the following. a. Fill in the missing entries in the contingency table.

b. Determine P(C1), P(R2), and P(C1 & R2).

c. Construct the corresponding joint probability distribution.

(I have Part A done)

(Probability and Statistics)

I'm not sure but it could be c ( not a 100% sure )

You're asking in the ap section, so i'll give the ap calculus-style answer. alternatively, you can find the vertex of the parabola and use the "y"-coordinate as the answer.

the maximum height can occur at a critical number, that is, a number  such that  .

the derivative of  can be calculated as follows:



find a value of  that is a zero of the derivative:


this is parabola that is opening downward; we can assume there is a maximum at  .

to find that maximum, calculate  .