Q1 - If the mean of
the following data is 20.6, find the value of p.
|
x:
|
10
|
15
|
p
|
25
|
35
|
|
f:
|
3
|
10
|
25
|
7
|
5
|
Q2 - If the mean of
the following data is 20, find the value of p.
|
x:
|
15
|
17
|
19
|
21
|
23
|
|
f:
|
2
|
3
|
4
|
5p
|
6
|
Q3 -The distribution below
gives the weight of 30 students in a class. Find the median weight of students.
|
Weight (in Kg.)
|
40-50
|
50 - 60
|
60 - 70
|
70-80
|
|
F:
|
5
|
14
|
9
|
2
|
Q4 -If the median of the
following frequency distribution is 46. Find the missing frequency.
|
Variable
|
10-20
|
20-30
|
30-40
|
40-50
|
50-60
|
60-70
|
70-80
|
Total
|
|
F:
|
12
|
30
|
P
|
65
|
q
|
25
|
18
|
229
|
Q5 - The total number of
marks scored by class in test is given below. Find the mean.
|
Below 20
|
4
|
|
Below 40
|
12
|
|
Below 60
|
30
|
|
Below 80
|
44
|
|
Below 100
|
50
|
Q6 - Find the median class
of the following data:
|
Marks Obtained
|
0-10
|
10-20
|
20-30
|
30-40
|
40-50
|
50-60
|
|
Frequency
|
8
|
10
|
12
|
22
|
30
|
18
|
Q7 -Find the mean by
direct methos for the following data:
|
Classes
|
10-20
|
20-30
|
30-40
|
40-50
|
50-60
|
60-70
|
70-80
|
|
Frequency
|
4
|
8
|
10
|
12
|
10
|
4
|
2
|
Q8 - Find the mean of
following frequency distribution:
|
Class-inetrval:
|
0-10
|
10-20
|
20-30
|
30-40
|
40-50
|
|
No. of workers:
|
7
|
10
|
15
|
8
|
10
|
Q9- If the mean of
the following distribution is 27, find the value of p:
|
Class-interval
|
0-10
|
10-20
|
20-30
|
30-40
|
40-50
|
|
No. of Workers
|
8
|
p
|
12
|
13
|
10
|
Q10 -Find the mean of the
following frequency distributions:
|
Class-interval
|
0-6
|
6-12
|
12-18
|
18-24
|
24-30
|
|
No. of Workers
|
6
|
8
|
10
|
9
|
7
|
Q11 - Find the median for
the following data:
|
Classes
|
10-20
|
20-30
|
30-40
|
40-50
|
50-60
|
60-70
|
70-80
|
|
Frequency
|
4
|
8
|
10
|
12
|
10
|
4
|
2
|
Q12- Find the mode for the
following data:
|
Classes
|
10-20
|
20-30
|
30-40
|
40-50
|
50-60
|
60-70
|
70-80
|
|
Frequency
|
4
|
8
|
10
|
12
|
10
|
4
|
2
|
Q13 -Compute the mode for
the following frequency distribution.
|
Size of items:
|
0-4
|
4-8
|
8-12
|
12-16
|
16-20
|
20-40
|
24-28
|
28-32
|
32-36
|
36-40
|
|
Frequency:
|
5
|
7
|
9
|
17
|
12
|
10
|
6
|
3
|
1
|
0
|
Where can I find the answers?
ReplyDeleteWhere can I find the answers?
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Deletegood questions where can i find answers for these questions
ReplyDeletePosting the answers as well will make it easier for cross-checking the student's written answers. If possible, please post the answers also.
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