Q: Find range, quartile deviation
C.I.
|
25-30
|
30-35
|
35-40
|
40-45
|
45-50
|
50-55
|
55-60
|
60-65
|
65-70
|
70-75
|
75-80
|
Frequency
|
1
|
1
|
8
|
2
|
2
|
1
|
4
|
2
|
0
|
3
|
4
|
Q: Find mean deviation and standard deviation
C.I.
|
56 - 60
|
61 - 65
|
66 - 70
|
71 - 75
|
76 - 80
|
Frequency
|
1
|
4
|
4
|
10
|
6
|
Q: Find coefficient of variation, coefficient of quartile deviation if
C.I.
|
55 - 60
|
60 - 65
|
65 - 70
|
70 - 75
|
75 - 80
|
80 - 85
|
Frequency
|
1
|
3
|
3
|
11
|
5
|
2
|
Q: Find coefficient of mean deviation and coefficient of range if
(a) 0, 2, 3, 6, 7, 8, 10, 14, 15, 24
(b) 0.7, 0.8, 1.4, 2.0, 3.5, 4.6, 8.1, 9.3
Q: The mean of the following distribution is 26. Find the value of p and also the value of the observation.
Also, find the mode and the given data.
Q: Find correlation coefficient
If
xi
|
0
|
11
|
21
|
23
|
14
|
25
|
yi
|
5
|
43
|
45
|
47
|
51
|
54
|
Q: The grades of a class of 9 students on a midterm report (x) and on the final examination (y) are as follows:
x
|
77 50 71 72 81 94 96 99 67
|
y
|
82 66 78 34 47 85 99 99 68
|
(a) Estimate the linear regression line.
(b) Estimate the final examination grade of a student
who received a grade of 85 on the midterm report
Q: The amounts of a chemical compound y that dissolved in 100 grams of water at various temperatures x were recorded as follows:
x
(
◦
C)
|
y
(grams)
|
0
15
30
45
60
75
|
8
12
25
31
44
48
|
(a) Find the equation of the regression line.
(b) Graph the line on a scatter diagram.
(c) Estimate the amount of chemical that will dissolve in 100 grams of water at 50◦C.
Extracted text: Q: Find range, quartile deviation С.I. 25-30 30-35 35-40 40-45 45-50 50-55 55-60 60-65 65-70 70-75 75-80 Frequency 1 8 2 2 4 2 3 4 Q: Find mean deviation and standard deviation C.I. 56 - 60 61 - 65 66 - 70 71 - 75 76 - 80 Frequency 1 4 4 10 6 Q: Find coefficient of variation, coefficient of quartile deviation if С.I. 55 - 60 60 - 65 65 - 70 70 - 75 75 - 80 80 - 85 Frequency 1 3 3 11 5 Q: Find coefficient of mean deviation and coefficient of range if (а) 0, 2, 3, 6, 7, 8, 10, 14, 15, 24 (b) 0.7, 0.8, 1.4, 2.0, 3.5, 4.6, 8.1, 9.3 Q: The mean of the following distribution is 26. Find the value of p and also the value of the observation. Xi 2 3 4 5 fi 3 3 p 7 р- 1 4 Also, find the mode and the given data. Q: Find correlation coefficient If Xi 11 21 23 14 25 yi 43 45 47 51 54 Q: The grades of a class of 9 students on a midterm report (x) and on the final examination (v) are as follows: 77 50 71 72 81 94 96 99 67 y 82 66 78 34 47 85 66 66 68 (a) Estimate the linear regression line. (b) Estimate the final examination grade of a student who received a grade of 85 on the midterm report Q: The amounts of a chemical compound y that dissolved in 100 grams of water at various temperatures x were recorded as follows: хx (С) y (grams) 8 15 12 30 25 45 31 60 44 75 48 (a) Find the equation of the regression line. (b) Graph the line on a scatter diagram. (c) Estimate the amount of chemical that will dissolve in 100 grams of water at 50•C.