Rset third problem set

Rset third problem set - R Assignment Statistics W1211 Ji...

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R Assignment Statistics W1211 Ji Meng Loh Homework 3 2: Min. 1st Qu. Median Mean 3rd Qu. Max. 0.1337 0.2525 0.3509 0.5917 0.5908 4.3480 It is clear that the overwhelming majority of the whales take on less than one unit of time to complete the swim of one kilometer. The mean time of 0.5917 is somewhat innaccurate because it is skewed by extreme outliers, mainly values the maximum value of 4.3480 which is more than 700 percent greater than the average value and an additional value estimated to be around 4.0. The Median is much more accurate of this population and is also much smaller than the mean value. A trimmed mean would probably bring the average to a value that was closer to the median value of 0.3509. The histogram with five bins shows that the distribution is clearly skewed to the right. The histogram with twenty bins shows that the mode is more precisely described in the range 0.25 to 0.5.
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3: Reciprocal Min. 1st Qu. Median Mean 3rd Qu. Max. 0.230
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This note was uploaded on 06/25/2008 for the course STAT 1211 taught by Professor Hernandez during the Spring '08 term at Columbia.

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Rset third problem set - R Assignment Statistics W1211 Ji...

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