SOLUTION: 2 Infant mortality rates (IMR) (i.e. the probability of a child dying before the age of one year) vary by race. In 2001 in the USA the IMR for Caucasians was 0.0057 and for Africa

Algebra ->  Probability-and-statistics -> SOLUTION: 2 Infant mortality rates (IMR) (i.e. the probability of a child dying before the age of one year) vary by race. In 2001 in the USA the IMR for Caucasians was 0.0057 and for Africa      Log On


   

Question 437220: 2 Infant mortality rates (IMR) (i.e. the probability of a child dying before the age of one year) vary by race. In 2001 in the USA the IMR for Caucasians was 0.0057 and for African Americans it was 0.0133. Suppose three Caucasian children are selected at random.
a. What is the probability all three will live past the age of one year?
b. What is the probability that at least one will die within one year?
c. Repeat part a and b for three randomly selected African American children
Answer by stanbon(75887) About Me  (Show Source):
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2 Infant mortality rates (IMR) (i.e. the probability of a child dying before the age of one year) vary by race. In 2001 in the USA the IMR for Caucasians was 0.0057 and for African Americans it was 0.0133. Suppose three Caucasian children are selected at random.
a. What is the probability all three will live past the age of one year?
Ans: (1-0.0057)^3
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b. What is the probability that at least one will die within one year?
Ans: 1-(1-0.0057)^3
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c. Repeat part a and b for three randomly selected African American children
Ans: (1-0.0133)^3
and 1-(1-0.0133)^3
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Cheers,
Stan H.