What is the variation ratio for the following table? 0.640 1.592 1.504 0.592 Wha
ID: 3351389 • Letter: W
Question
What is the variation ratio for the following table?
0.640
1.592
1.504
0.592
What is the modal category for the above table?
Health
Finances
Personal
Family
What is the variation ratio for the table below?
Frequency
Clerical
119
Custodial
103
Manager
107
Total
329
0.766
0.234
0.638
0.599
What is the median for the following set of scores? 11, 12, 12, 14, 11, 10, 18
10
11
12
18
What is the median for the following set of scores? 56, 54, 45, 48, 56, 56, 50, 51, 52, 59
52
53
56
54
What is the variance for the following set of scores? 2, 3.5, 4, 2, 3, 2, 1
1.21
1.08
2.01
1.30
What is the variance for the following set of scores? 56, 55, 58, 45
31.45
33.67
5.80
29.98
What is the standard deviation for the following set of scores? 1.3, 1.6, 0.8, 1.1, 0.7
0.37
0.45
0.31
0.14
Say in a sample of 100, I have a variance of 35.2. What’s my standard deviation?
4.75
5.98
0.06
5.93
Say in a sample of 44, I have a variance of 75.8. What’s my standard deviation?
8.71
8.20
7.90
0.99
Frequency
Clerical
119
Custodial
103
Manager
107
Total
329
Explanation / Answer
Answer
4) Arranged observation 10,11,11,12,12,14,18
Total No of observations are =n=7
median = [(n+1)/2]th observation in arranged data
= (7+1)/2th observation
= 12
5) Here arranged data is 45 48 50 51 52 54 56 56 56 59
total no of observation n= 10 which even No
Median =[ (n/2)th +((n/2)+1)th] /2
=(52+54)/2
=53
6)> s=c( 2, 3.5, 4, 2, 3, 2, 1)
> var(s)
[1] 1.083333
>
7) s=c(56, 55, 58, 45)
> var(s)
[1] 33.66667
8) s=c(1.3, 1.6, 0.8, 1.1, 0.7)
> var(s)
[1] 0.135
> sd=sqrt(var(s))
> sd
[1] 0.3674235 === 0.37
>
9) Here var =35.2
standard deviation = sqrt(var) = sqrt(35.2)
= 5.93
9) Here var =75.8
standard deviation = sqrt(var) = sqrt(75.8)
=8.71
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