Mathematics, 27.03.2020 05:08 Anabel818
Prompt Recall the use of data from the National Health Survey to estimate behaviors such as alcohol consumption, cigarette smoking, and hours of sleep for all U. S. adults. In the 2005-2007 report, they estimated that 30% of all current smokers started smoking before the age of 16. Suppose that we randomly select 100 U. S. adults who are smokers and find that 25% of this sample started smoking before the age of 16. Is this much error surprising? 1. Assuming the report is correct that 30% of smokers started before 16, what is the probability that 25% or less of the above sample of 100 adults started smoking before 16? 2. Assuming the report is correct that 30% of smokers started before 16, what is the probability that 35% or more of the above sample of 100 adults started smoking before 16?
Answers: 2
Mathematics, 21.06.2019 14:00
Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)
Answers: 3
Mathematics, 21.06.2019 19:00
1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)
Answers: 1
Mathematics, 21.06.2019 20:10
Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36
Answers: 1
Prompt Recall the use of data from the National Health Survey to estimate behaviors such as alcohol...
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