Question

2. According to the Social Security Administration, the mean life expectancy for males born in the US in 2014 is 76.15 years. Median life expectancy for this same group is 80.

i. Are there more observations to the left or to the right of the mean?

ii. Which tail of the distribution (left or right) do you think is longer? Explain your answer. [Hint: The probability of dying before the age of 2 for males in the US is 0.007%. Meanwhile, the oldest known living male in the US is 111 years old.]

iii. Which measure of central tendency would you say better characterizes the “typical” life expectancy in this sample? Justify your answer (you can use specific examples to justify your answer).

Answer 1