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Mean, Median, Mode, Range

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by

Natalie Howell

on 27 August 2015

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Transcript of Mean, Median, Mode, Range

Mean, Median, Mode, & Range

To calculate - add up all of the scores and then divide by the number of scores.
Mean

1. Rank order the scores from smallest to largest.

2. If you have an odd number of scores, then the middle score is the median.

3. If you have an even number of scores, then add the two middle scores and divide by 2.
Median
The mode is the most frequently occurring score. (OFTEN)
Mode
The "range" for a data set is the DIFFERENCE between the largest value and
smallest value contained in the data set.
Range
Practice:
Mean, Median, Mode, and Range
Practice:
Mean, Median, Mode, and Range
Example: Find the mean of: 2, 5, 8, 7, 3
2+5+8+7+3=25
Divide total of scores
25/5=5
Example
8,4,3,9,7,2
Rank from smallest to largest
2,3,4,7,8,9
Median
4+7=11
11/2=5.5
Example:
5,1,7,6,9,8,2,4,6
Rank from smallest to largest.
1,2,4,5,6,6,7,8,9
Mode=6
Example:
5,1,6,7,2,9
Rank the numbers from smallest to largest.
1,2,5,6,7,9
subtract
9-1=8
Range=8
Find the mean, median, mode, and range.
12,18,7,6,12,19,3
3,6,7,12,12,18,19
Mean=
Median=
Mode=
Range=
Mean=5
11
12
12
16
15,5,7,18,5,9,10,3
3,5,5,7,9,10,15,18
Mean=
Median=
Mode=
Range=
9
8
5
15
The median is the score in the MIDDLE.
The mean is the AVERAGE score.
Can you have more than one mode?
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