1. Compute the expected value, standard deviation, and coefficient of variation before the acquisition.

I need step by step explanation and answer thanks.

how do I get the 15.9 for the standard deviation I think 15.9 for standard deviation might be more or less

Problem 13-27 Transoceanic Airlines is examining a resort motel chain to add to its operations. Before the acquisition, the normal expected outcomes for the firm were as follows: Recession Strong economy Normal economy Strong economy Outcomes Expected value Standard deviation Coefficient of variation 530 After the acquisition, the expected outcomes for the firm would be: Expected value Standard deviation Coefficient of variation Outcomes (5 millions) After the acquisition these values are as follows: $10 50 Probability 0.40 0.30 $ S Probability 0.30 0.30 a. Compute the expected vallue, standard deviation, and coefficient of variation before the acquisition. (Enter the answers in milllions. Round "Coefficient of variation" to 3 decimal places. Round "Expected value" and "Standard deviation to 1 decimal place.) 53.0 ($ millions) 34.9 (S millions) 658 million million