Polydactyly is a fairly common congenital abnormality in which a baby is born wi

Question

Polydactyly is a fairly common congenital abnormality in which a baby is born with one or more extra fingers or toes. A young obstetrician has collected data for the past five years of the babics she has delivered, and reportod whcthcr or not this abnormality was prosont and the gender of the newborn. Use this information to answer the next two questions. Polydactyly Gender Yes No Total Male 15 940 955 Femal 10 897 907 Total 25 1837 1862 9. What is the probability that a randomly selected newborn child will have polydactyly? a. 15/25 25/1862 c. 15/1862 d. 15/955 e. None of the above

Explanation / Answer

Total number of babies in the analysis = 1862

Total number of babies born with polydactyl = 25

Probability that a randomly selected newborn child will have polydactyl = 25/1862

Answer: Option B.

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