Mean Absolute Deviation
absolute value
distance a number is from zero on the number line - value of the number without the sign ( will always be a positive number)
mean absolute deviation
one measure of variability; the average of how much the individual scores of a data set differ from the mean of the set. - abbreviation: MAD
the difference between the largest number and the smallest number in a list
range
deviation
the DIFFERENCE between one set of values and some fixed value, usually the mean of the set.
Standard deviation
meaures the spread of data about the mean.
The middle number of a list of data when the numbers are arranged in order from the least to greatest
median
the number of numbers that appear most often in a list of data
mode
88
Find the range: 56, 79, 80, 80, 93, 16, 16, 17, 5
7.5
Find the median of these numbers: 7, 12, 1, 5, 7, 8
-4
Find the median: -9, -12, 3, 12, 0, -3, -4
52.5
Find the median: 21, 32, 45, 60, 13, 25
5.5
Find the median: 7, 3, 12, 4
97
Betha's test scores. Find the median: 79, 86, 86, 97 100, 95, 67
8
Calculate the mean: 9, 12, 23, 2, 5, 6, 7
Symmetry
Data is symmetrical and balanced about
7.64
Find the Mean Absolute Deviation for the following numbers: .5, 25, 3, .75, .25
8
Find the Mean Absolute Deviation for the following numbers: 4, 8, 12, 16, 20, 24, 28, 32
15
Find the mean of 16,12,20,15,12
2.2
Find the mean of 2.2, 1.2, 3.4, 2
14
Find the mean of 4, 8, 12, 16, 20, 24
6
Find the mean of 8,3,12,5,2,9,3
85
Find the mean of 89, 73, 84, 91, 87, 77, 94
10
Find the mean of these numbers: 5, 8, 17, 20, 0
Range
The highest score minus the lowest score
4
What is the mean absolute deviation of the numbers $63,$59,$72,$68,$61,$67
2.4
What is the mean absolute deviation of the numbers 33,38,31,36,37
10.0
What is the mean absolute deviation of these numbers 110,108,100,90,88,80
4.0
What is the mean absolute deviation of these numbers 12,9,4,2,12,1,9
2.5
What is the mean absolute deviation of these numbers 22,20,28,24
2.0
What is the mean absolute deviation of these numbers 51,57,52,55,53,50
2.9
What is the mean absolute deviation of these numbers 90,80,92,91,88,89
3.1
What is the mean absolute deviation of these numbers 20,21,30,17,14,18,20
3.6
What is the mean absolute deviation of these numbers 14,7,6,5,13
1.25
What is the mean absolute deviation of these numbers 5,7,4,6,3,5,3,7
mean
a measure of center to describe a data set; same as average; add up the numbers and divide by how many number there are
34.5
Find the mean: 39,34,35,42,45,12,
5.5
Find the mean: 9, 7, 2, 4, 3, 5, 9, 6, 8, 0, 3, 8
15
Find the median of 16,12,20,15,12
23
Find the median: 87,56,45,23,23,34,64,23,54
12
Find the mode of 16,12,20,15,12
7
Find the mode of these numbers: 7, 12, 1, 5, 7, 8, 7
44
Find the mode: 44,29,13,44,15
64
Find the mode: 89,72,34,35,35,35,64,64,77,88,64,88,64
100 and 13.5
Find the mode: 92, 100, 100, 23, 24, 99, 13.5, 13.5
14
Find the range of these numbers: 2, 4, 6, 8, 12, 16
54
Find the range: 2, 8, 10, 12, 56, 9, 5, 2, 4,
96
Find the range: 67, 35, 67, 67, 13, 108, 109
53
Find the range: 73,45,67,87,98
