To determine whether or not they have a certain disease, 120 people are to have their blood tested. however, rather than testing each individual separately, it has been decided first to group the people in groups of 10. the blood samples of the 10 people in each group will be pooled and analyzed together. if the test is negative. one test will suffice for the 10 people (we are assuming that the pooled test will be positive if and only if at least one person in the pool has the disease); whereas, if the test is positive each of the 10 people will also be individually tested and, in all, 11 tests will be made on this group. assume the probability that a person has the disease is 0.02 for all people, independently of each other.
(a) compute the expected number of tests necessary for each group. expected number for each group:
(b) compute the expected total number of tests necessary for the entire population of 120 people. expected

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

the answer

b. they are parallel and will never intersect.

it could be 1,3 and more others to create a cylinder.

step-by-step explanation:

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation: