MS 150 Statistics Quiz 3 • Name:

The following data is based on measurements gathered from 1953 to 2002 by the weather service in Kolonia, Pohnpei. Measurements are average monthly rainfall in centimeters. There are 2.54 centimeters in an inch.

MonthCentimeters of rain
January12.6
February10.9
March14.1
April17.7
May19.1
June16.7
July17.2
August16.4
September15.7
October15.8
November16.0
December15.8
  1. __________ What month has the least average rainfall?
  2. __________ What month has the highest average rainfall?
  3. __________ Find the mode for the above rainfall data.
  4. __________ Find the median for the above rainfall data.
  5. __________ Find the mean for the above rainfall data.
  6. __________ Find the sample standard deviation sx for the above rainfall data.
  7. __________ Find the coefficient of variation CV for the above rainfall data.