You started with an original solution that has a concentration of 64×10^9 bacteria per ml. You first performed three 1 to 2 dilution (500 ul of the initial solution in 500 ul of medium). Then four 1 to 100 dilutions (10 ul of the solution in 990ul of medium). You then plate 100 ul of your last dilution on a plate. How many colony forming units do you expect to see on the plate after growth?

You have a solution of bacteria. You make three 1 to 100 dilutions followed by two 1 to 10 dilutions and plate 100 ul of this solution. After 24 hours you count 47 bacteria. How many bacteria/ml did you have in the original solution and how precise do you think your number is?

The Lubricant is an expensive oil newsletter to which many oil giants subscribe, including Ken Brown (see problem 3-17 for details). In the last issue, the letter described how the demand for oil products would be extremely high. Apparently, the American consumer will continue to use oil products even if the price of these products doubles. Indeed, one of the articles in the Lubricant states that the chances of a favorable market for oil products was 70%,while the chance of an unfavorable market was only 30%. Ken would like to use these probabilities in determining the best decision.a) what decision model should be usedb)what is the optimal decisionc)Ken believes that the $300000 figure for the sub 100 with a favorable market is too high. How much lower would this figure have to be for Ken to change his decision made in part (b)?