Resources for Topic 1 Nature of Data


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Types of Data

Descriptive Statistics


Readings from the texts

Kuzma Pages 23-28, 45-49

Problems

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1. Classify each of the following variables as binary, categorical without order, categorical with order or continuous. Some may be of more than one type depending upon how they were measured. 
      1.  Age
      2.  Ethnic origin
      3.  Source of drinking water
      4.  Level of education
      5.  Height
      6.  Exposure to lead
      7.  Level of cholesterol
      8.  Political orientation
      9.  Political affiliation
     10.  Income
     11.  Occupation
     12.  Attitude toward statistics

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Answer

2a. Find the mean, median and mode of these numbers:
1,4,3,8,11,8,2,12,5,6

b. Find the range, variance and standard deviation of these numbers.

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Answer

3a. Find the mean, median and mode for this data. 
        Score     Frequency
          1           4
          2           5
          3           7
          4           5
          5           4


b. Find the range, variance and standard deviation.

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Answer

4a. Find the mean, median and mode for this data. 
     Score     Frequencey
       1            3
       2            6
       3            7
       4            3
       5            2
       6            2
       7            1
       8            1

b. Find the range, variance and standard deviation.

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Answer

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