Suppose that the tsh (thyroid stimulating hormone) levels among healthy individuals are normally distributed with a mean of 3.1 units/ml. suppose also that exactly 95% of healthy individuals have tsh levels below 5.8 units/ml. find the standard deviation of the distribution of tsh levels of healthy individuals. carry your intermediate computations to at least four decimal places. round your answer to at least two decimal places.

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −