Find the mean by method : class : 20 -30 , 30 -40 , 40- 50 , 50- 60 , 60 - 70 frequency : 25 40 42 33 10
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Summary Statistics
mode: 3.00
median: 2.00
minimum: 1.00
maximum: 3.00
mean: 2.23
standard deviation: 0.84
Variable Type: numeric
(Range of) Missing Values: 0, 4, 9
Notes
Source: This variable was taken from Euro-barometer 38.1: Consumer Protection and Perceptions of Science and Technology, November 1992.
Copyright: ICPSR has an FAQ on copyright and survey instruments.
Disclaimer: The frequencies for this variable may not be weighted. They are purely descriptive and may not be representative of the study population. Please use with caution and consult the study documentation.
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