As part of the underwriting process for insurance, each prospective policyholder is tested for high blood pressure. Each policyholders blood pressure test results are independent of other policyholder results. Let XX represent the number of tests completed when the first person with high blood pressure is found. The expected value of XX is 12.5. Calculate the probability that the sixth person tested is the first one with high blood pressure.

If you answer 2+2 you will get over 80 points

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

The area of a circle is equal to 1 dm². find the radius of the circle.