The infant mortality rate (number of infants who die in their first year per 1,000 births. has a mean for the OECD (most advanced industrial countries. of 8 with a standard deviation of 1. The infant mortality rate in the U.S. is 9 infant deaths per 1,000 births. The rate for Ireland, Singapore, Hong Kong, Netherlands, France, Canada, Germany, and Switzerland are all the same. Their rate is 2 z-scores below that of the U.S. What is their rate?

The infant mortality rate (number of infants who die in their first year per 1,000 births. has a mean for the OECD (most advanced industrial countries. of 8 with a standard deviation of 1. The infant mortality rate in the U.S. is 9 infant deaths per 1,000 births. The rate for Ireland, Singapore, Hong Kong, Netherlands, France, Canada, Germany, and Switzerland are all the same. Their rate is 2 z-scores below that of the U.S. What is their rate?



A. 6


B. 6.5
 
C. 7


D. 7.5


E. 8


  Answer Key: C


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