SOLUTION: Question... Which of the following most closely approximates a normal distribution, in the United States : age at time of death, or annual income? Off the cuff, it would be evi

Question 839192: Question...
Which of the following most closely approximates a normal distribution, in the United States : age at time of death, or annual income?
Off the cuff, it would be evident that "age at time of death" would closely approximate a normal distribution... but I'm not sure as to the mathematical mechanics or supporting theory (if my assumption is correct). Can someone please advise.
Thank You for your time and support.

Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Actually my intuition says annual income is more like a normal distribution...age of death is more likely skew left since if the average life expectancy is 80, far more people are going to die significantly younger (e.g. 20 or 50) than significantly older (since very few people have lived past 110). Annual income can be skewed in both directions, making it more symmetric.
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