A true-false test contains 16 questions. In how many different ways can this test be completed? (Assume we don't care about our scores.) This test can be completed in   ?    different ways.

If o = 36 and n = 9, then (standard error) is = 12 6 4

13 need help with this, please!

A certain affects virus 0.8% of the population. A test used to detect the virus in a person is positive 88% of the time if the person has the virus (true positive) and 13% of the time if the person does not have the virus (false postive). Fill out the remainder of the following table and use it to answer the two questions below.  (enter answer with no commas, i.e. as 1000 not 1,000.)     Infected Not Infected Total Positive Test [a] [b] [c] Negative Test [d] [e] [f] Total 800 99,200 100,000 i) Find the probability that a person has the virus given that they have tested positive. (Round your answer to the nearest tenth of a percent and do not include a percent sign.)[g]_______ % ii) Find the probability that a person does not have the virus given that they test negative. (Round your answer to the nearest tenth of a percent and do not include a percent sign.)[h]________ %