The probability that the man will be alive 25 years is 2/3 and the probability that his wife will be alive 25 years 2/3.find the probability that:
both will be alive
Let, M = the event that the man will be alive in 25 years, and
W = the event that his wife will be alive in 25 years.
We are said that
Observe that, M and W are independent events , so
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