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Averages of Frequency Tables

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by

Andrew Lanning

on 16 April 2010

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Transcript of Averages of Frequency Tables

Averages of Frequency Tables 20 people were asked how many pets they have.
The results are shown below.

0 0 0 0 1 1 1 1 1 1 1 1 1
2 2 2 3 3 4 5 We want to put the data
into a frequency table Leave room for another column Find the mode, median and mean
number of pets. Mode = 1

Median is the value between 10th & 11th value
Median = 1 (because from the 5th to the 13th values are all 1's.

Mean = 30 ÷ 20 = 1.5 From Yesterday: Find the mean, median and mode of:

7 6 9 5 3 0 0 3 5 0

Which average is not appropriate??
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