In the June 2005 issue of Golf Digest is a preview of the 2005 U.S. Open, titled "Back to Pinehurst." Included is information on the course, Pinehurst in North Carolina.
The following table lists the lengths, in yards, of the 18 holes at Pinehurst.

a. Obtain and interpret the population mean of the hole lengths at Pinehurst.
b. Obtain and interpret the population standard deviation of the hole lengths at Pinehurst.

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401 469 336 565 472 220 404 467 175 607 476 449 378 468 203 492 190 442