a) The
mean, median and range.
10,
21, 23, 27, 27, 29, 30, 32, 33, 40
b) The
mean deviation
|
High fuel Economy(mpg)
|
X-X bar
|
Absolute Deviation
|
( X-X bar) Square
|
|
10
|
10-27.2=
-17.2
|
17.2
|
295.84
|
|
21
|
21-27.2= -6.2
|
6.2
|
38.44
|
|
23
|
23-27.2=
-4.2
|
4.2
|
17.64
|
|
27
|
27-27.2=
-0.2
|
0.2
|
0.04
|
|
27
|
27-27.2=
-0.2
|
0.2
|
0.04
|
|
29
|
29-27.2=
1.8
|
1.8
|
3.24
|
|
30
|
30-27.2=
2.8
|
2.8
|
7.84
|
|
32
|
32-27.2= 4.8
|
4.8
|
23.04
|
|
33
|
33-27.2=5.8
|
5.8
|
33.64
|
|
40
|
40-27.2=
12.8
|
12.8
|
163.84
|
|
Total
|
56
|
583.6
|
|
MD =
= 56/10 =
5.6#
c) The
standard deviation and variance
Variance:
No comments:
Post a Comment