At a car factory, two jobs are performed at the specified costs given in the table. Each job can be performed at two different speeds: a) Calculate the expected value (mean) of the cost for different...

At a car factory, two jobs are performed at the specified costs given in the table. Each job can be performed
at two different speeds:
a) Calculate the expected value (mean) of the cost for different speeds and indicate which option (job
couple of Job I and Job II) is the most economical.
b) Due to a new situation that comes up, a total cost reduction of 70000 (i.e. -70000) will be offered if
Job II is completed in 2 days. Considering this new situation, will the most economical option change?

Extracted text: Job Speed Daily Cost The probability of The probability of The probability of completion in 4 days completion in 2 days completion in 3 days 0.1 CC A 26000 0.7 0.2 В 22000 0.2 0.2 0.6 II C 41000 0.5 0.4 0.1 II D 32000 0.2 0.5 0.3