William solved the equation 5 + 14a = 9a - 5, but he is not sure he solved it correctly. His work is shown below. Did he solve i
2 answers:
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Answer:
Step-by-step explanation:
Let X be length of life of the participants in the plan.
Given that X is N(68,3.5)
We convert this to standard normal score z using
a) proportion of the plan recipients that would receive payments beyond age 75=
b) proportion of the plan recipients die before they reach the standard retirement age of 65=
c) x for 86% ceased