Refer to the following information on full-term births in the United States over

Question

Refer to the following information on full-term births in the United States over a given period of time. Type of Birth Number of Births Single birth Twins Triplets 29,800,000 300,000 3000 100 Use this information to estimate the probabilities of the following events. (a) A randomly selected pregnant woman who reaches full term delivers twins. (Give the answer to three significant figures.) (b) A randomly selected pregnant woman who reaches full term delivers quadruplets. (Give the answer to three significant figures.) (c) A randomly selected pregnant woman who reaches full term gives birth to more than a single child. (Give the answer to three significant figures.)

Explanation / Answer

a) Full term delivers= 300000/(29800000+300000+3000+100) = 0.010

b) Full Term quadruplets = 100/(29800000+300000+3000+100) = 0.000

c) Delivers more than one child = (300000+3000+100)/(29800000+300000+3000+100) = 0.010

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