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Chapter 3: Q. 31 (page 153)

Life Expectancy. From The World Bank, in the document Life Expectancy at Birth, we obtained data on the expectation of life (in years) at birth for people in various countries. Those data are presented on the WeissStats site.

  • a. Obtain the mean, median, and mode(s) of the data. Determine which of these measures of the center is best, and explain your answer
  • b. Determine the range and sample standard deviation of the data.
  • c. Fond the five-number summary and interquartile range of the data.
  • d. Identify potential outliers, if any:
  • e. Obtain and interpret a boxplot.

Short Answer

Expert verified

Ans:

Part (a).

Part (b).

Part (c).

Part (d).

Part (e).

Step by step solution

01

Step 1. Given information:

  • Obtained data on the expectation of life (in years) at birth for people in various countries.
02

Step 2. Solving Part (a):

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