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Infant mortality rates are often used to assess quality of life

Infant-mortality rates are often used to assess quality of life and adequacy of health care. The rate is based on the number of deaths of infants under 1 year old in a given year per 1000 live births in the same year. Listed here are the infant-mortality rates, to the nearest integer, in eight nations throughout the world, as found in The World Factbook.

Suppose the next 2000 births within each nation are tracked for the occurrence of infant deaths.

a. Construct a table showing the mean and standard deviation of the associated binomial distributions.

b. In the final column of the table, find the probability that at least 70 infants from the samples within each nation will become casualties that contribute to the nation’s mortality rate. Show all work.

Suppose the next 2000 births within each nation are tracked for the occurrence of infant deaths.

a. Construct a table showing the mean and standard deviation of the associated binomial distributions.

b. In the final column of the table, find the probability that at least 70 infants from the samples within each nation will become casualties that contribute to the nation’s mortality rate. Show all work.

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