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***********************[ b 0 g - [ a r t i c l e # 4 ]**********************
$ by: afwa3f $
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** [ t h e t h r e e t y p e s o f a v e r a g e s ] **
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HeLLo AnArChisTs, i h0Pe y0U enJ0y mUhH TeXt PhiLe. k0mMentZZ and
SugGesti0nZZZ g0 t0 U-Haul@writeme.com. Sorry about everything being
aligned in a screwed up way.
The Three Types of Averages are:
mean (most often referred to as "the average")
median
mode
The mean is the sum of a set of numbers divided by the number of items
(numbers) in that set.
The median is the middle value in a set of data.
The mode is the data item that occurs most often.
Mean Example :
Miss Sculco gave a math test for her small class. The scores of the test
were 25, 85, 100, 95, 75. Find the mean average.
Set of numbers = {25, 85, 100, 95, 75}
The sum of the set = 25+85+100+95+75 = 380
The number of items = 5
Mean average = sum of the set divided by the number of items = 380 divided
by 5 = 76
Mean average = 76
The mean average of the scores of Miss Sculco's test was 76.
Median Example:
Miss Sculco wanted to find the median shoe size for the students in her
class. The sizes were 8, 7, 4, 6, 7, 10, 9, 13, and 7. Find the median.
set of data = {8, 7, 4, 6, 7, 10, 9, 13, 7}
Medianmiddle value in a set of data. to find it, put the numbers in order
from greatest to least.
4, 6, 7, 7, 7, 8, 9, 10, 13
Now, just find the number in the middle of the set of numbers.
median = 7
Mode Example:
Miss Sculco wanted to find the mode shoe size for the students in her class.
Refer to the above problem for the shoe sizes. What is the mode?
Mode = data item that occurs most often.
7 occurs most often in the above set of numbers. therefore, 7 is the mode
shoe size. (All the other numbers only appeared once, and 7 appeared three
times)
WeLL, i h0Pe y0U EnJ0yEd My TeXt PHiLe.
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