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As an epidemiologist you are going to investigate the effect of a drug suspected of causing malformations in newborn infants when the drug in question is taken by pregnant women during the course of their pregnancies. As your sample you will use the next 200 single births occurring in a given hospital. For each birth a medication history will be taken from the new mother and from her doctor; in addition, you will review medical records to verify use of the drug. [N.B.: These mothers are considered to have been followed prospectively during the entire course of their pregnancies, because a complete and accurate record of drug use was maintained during pregnancy.]
The resultant data are:
Forty mothers have taken the suspected drug during their pregnancies. Of these mothers, 35 have delivered malformed infants. In addition, 10 other infants are born with malfunctions.
The relative risk between exposure to the drug and malformations is:
A. 14
B. 12
C. 18
D. 10
E.16
Suppose n = 5, and x 1 = 1.2, x 2 = 1.8, x 3 = 2.6, x 4 = 3.1, x 5 = 3.8.Find the method of moments estimate of θ.
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Prove that if p ∈ N is a prime number, then there exist a real number x, such that x2 = p. Moreover, x ∉ Q.
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Construct the graph you have just described.
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Her half indicates that to find the treasure, one must get to Castle Rock, walk x paces to the north, and then walk 2x + 4 paces to the east. If they share their information, then they can find x and save a lot of digging.
determine the number of comparisons used by the tournament sort to find the largest element of the list using the tournament sort
the data below are the final exam scores of 10 randomly selected statistics students and the number of hours they
Compute the number of different equivalence relations on a set with n elements for all positive integers n not exceeding 20.
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