Your answer is partially correct. Thickness measurements of a coating process are made to the nearest hundredth of a millimeter. The thickness measurements are uniformly distributed with values 0.13, 0.14, 0.15, 0.16, 0.17. Determine the mean and variance of the coating thickness for this process. Round your answers to four decimal places (e.g. 98.7654). (a) mean (in millimeters) (b) variance (in millimeters) (a) 0.15 (b) i 0.00025 Your answer is partially correct. In a clinical study, volunteers are tested for a gene that has been found to increase the risk for a disease. The probability that a person carries the gene is 0.2. (a) What is the probability that 4 or more people will have to be tested until 2 of them with the gene are detected? Round your answer to three decimal places (e.g. 0.987). (b) How many people are expected to be tested until 2 of them with the gene are detected? (a) 0.896 (b) i 2.2321