In 2013, 4579 runners completed the Great Cow Harbor 10K Run in Northport, New York The youngest finisher was 7 years old and the oldest finisher was 82 years old The age distribution is unimodal and symmetric a What is the range of the ages b In Exercise 58, you found that if a distribution is uni...

In 2013, 4579 runners completed the Great Cow Harbor 10K Run in Northport, New York. The youngest

Question:

In 2013, 4579 runners completed the Great Cow Harbor 10K Run in Northport, New York. The youngest finisher was 7 years old and the oldest finisher was 82 years old. The age is unimodal and symmetric.
a. What is the range of the ages?
b. In Exercise 58, you found that if a is unimodal and symmetric with no outliers, then the standard deviation is approximately R/6, where R is the range. Estimate the 6 standard deviation of the ages.
c. The actual standard deviation of the ages is 12.4 years. Find the error of the result you found in part (b). (The error is the estimated standard deviation minus the actual standard deviation.) Distribution
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