ENTC Lecture 2, Variation, Standard Deviation
Presentation
•
Specialty
•
University
•
Hard
Jon Casteel
Used 2+ times
FREE Resource
76 Slides • 6 Questions
1
Poll
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Open Ended
What questions do you have at this point?😊
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Teaching Style
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Fill in the Blanks
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S =
(X - X)
i
2
n - 1
61
S =
(X - X)
i
2
n - 1
62
S =
63
S =
64
S =
(X - )
i
65
S =
(X - X )
i
66
S =
(X - X )
i
2
67
S =
(X - X )
i
2
68
S =
(X - X )
i
2
n - 1
69
S =
(X - X )
i
2
n - 1
1, 2
X =
1.5
70
S =
(X - X )
i
2
n - 1
1, 2
( 1 - 1.5 )
X =
1.5
+
S =
( 2 - 1.5 )
2
2
71
S =
(X - X )
i
2
n - 1
1, 2
( 1 - 1.5 )
X =
1.5
+
S =
( 2 - 1.5 )
2
2
72
S =
(X - X )
i
2
n - 1
1, 2
( 1 - 1.5 )
X =
1.5
+
S =
( 2 - 1.5 )
2
2
( -.5 )
+
S =
( .5 )
2
2
( .25 )
+
S =
( .25 )
73
S =
(X - X )
i
2
n - 1
1, 2
( 1 - 1.5 )
X =
1.5
+
S =
( 2 - 1.5 )
2
2
( -.5 )
+
S =
( .5 )
2
2
( .25 )
+
S =
( .25 )
S =
.5
1
74
S =
(X - X )
i
2
n - 1
1, 2
( 1 - 1.5 )
X =
1.5
+
S =
( 2 - 1.5 )
2
2
( -.5 )
+
S =
( .5 )
2
2
( .25 )
+
S =
( .25 )
S =
.5
1
S =
.5
=
.70710678
75
S =
(X - X )
i
2
n - 1
2,9,8,5,12
X =
7.2
Range =
Median =
Mode =
10
8
none
76
S =
(X - X )
i
2
n - 1
2,9,8,5,12
(2 - 7.2) + (5 - 7.2) + (8 - 7.2) + (9 - 7.2) + (12 - 7.2)
X =
7.2
S =
2
(-5.2) + (-2.2) + (.8) + (1.8) + (4.8)
2
2
2
2
2
2
2
2
2
77
S =
(X - X )
i
2
n - 1
2,9,8,5,12
X =
7.2
S =
(-5.2) + (-2.2) + (.8) + (1.8) + (4.8)
2
2
2
2
2
S =
(27.04) + (4.84) + (.64) + (3.24) + (23.04)
78
S =
(X - X )
i
2
n - 1
2,9,8,5,12
X =
7.2
S =
(-5.2) + (-2.2) + (.8) + (1.8) + (4.8)
2
2
2
2
2
S =
(58.8)
79
S =
(X - X )
i
2
n - 1
2,9,8,5,12
X =
7.2
S =
(-5.2) + (-2.2) + (.8) + (1.8) + (4.8)
2
2
2
2
2
S =
(58.8)
5 - 1
(4)
80
S =
(X - X )
i
2
n - 1
2,9,8,5,12
X =
7.2
S =
(-5.2) + (-2.2) + (.8) + (1.8) + (4.8)
2
2
2
2
2
S =
(58.8)
5 - 1
(4)
S =
58.8
4
81
S =
(X - X )
i
2
n - 1
2,9,8,5,12
X =
7.2
S =
(-5.2) + (-2.2) + (.8) + (1.8) + (4.8)
2
2
2
2
2
S =
(58.8)
5 - 1
(4)
S =
58.8
4
S =
14.7
82
S =
(X - X )
i
2
n - 1
2,9,8,5,12
X =
7.2
S =
(-5.2) + (-2.2) + (.8) + (1.8) + (4.8)
2
2
2
2
2
S =
(58.8)
5 - 1
(4)
S =
58.8
4
S =
14.7
S =
3.834057902536163
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