14. The following table is a partial probability distribution for the MRA Company’s projected profits (x  profit in $1000s) for the first year of operation (the negative value denotes a loss)

a. What is the proper value for f(200)? What is your interpretation of this value?

b. What is the probability that MRA will be profitable?

c. What is the probability that MRA will make at least $100,0

a. Compute E(x), the expected value of x.

b. Compute σ2 , the variance of x.

c. Compute σ, the standard deviation of x.