(i) The probability a 30-year-old survives to age 40 is 5/6. (ii.) The probability a 40-year-old survives to age 70 is 2/5. (iii.) Given a 30-year-old dies before age 50, the probability he/she dies after ge 40 is 1/2. Find the probability that a person age 50 will survive to age 70.

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