CBSE Class 9 > Class 9 Notes > Mathematics (Maths) > RD Sharma Solutions: Measures of Central Tendency- 2
RD Sharma Solutions: Measures of Central Tendency- 2
| Download, print and study this document offline |
Please wait while the PDF view is loading
Page 1
Q u e s t i o n : 2 5
Calculate the mean for the following distribution:
Page 2
Q u e s t i o n : 2 5
Calculate the mean for the following distribution:
x: 5 6 7 8 9
f: 4 8 14 11 3
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 6
Find the mean of the following data:
x: 19 21 23 25 27 29 31
f: 13 15 16 18 16 15 13
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Page 3
Q u e s t i o n : 2 5
Calculate the mean for the following distribution:
x: 5 6 7 8 9
f: 4 8 14 11 3
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 6
Find the mean of the following data:
x: 19 21 23 25 27 29 31
f: 13 15 16 18 16 15 13
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 7
Find the mean of the following distribution:
x: 10 12 20 25 35
f: 3 10 15 7 5
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing . Find the sum of all entries in the second and third column to
obtain N and respectively.
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Page 4
Q u e s t i o n : 2 5
Calculate the mean for the following distribution:
x: 5 6 7 8 9
f: 4 8 14 11 3
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 6
Find the mean of the following data:
x: 19 21 23 25 27 29 31
f: 13 15 16 18 16 15 13
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 7
Find the mean of the following distribution:
x: 10 12 20 25 35
f: 3 10 15 7 5
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing . Find the sum of all entries in the second and third column to
obtain N and respectively.
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 8
Five coins were simultaneously tossed 1000 times and at each toss the number of heads were observed. The
number of tosses during which 0, 1, 2, 3,4 and 5 heads were obtained are shown in the table below. Find the mean
number of heads per toss.
No. of heads per toss No. of tosses
0
1
2
3
4
5
38
144
342
287
164
25
Total 1000
S o l u t i o n :
The given data can be tabulated in the form
The row of x denotes the number of heads per toss and the row of f denotes the number of tosses.
Prepare the following frequency table of which the first column consists of the number of heads and the second
column the number of tosses frequencies
. Multiply the frequency of each row with the corresponding number of heads to obtain the third column containing
.
Find the sum of all entries in the second and third column to obtain N alreadygiveninthequestion
and respectively. Therefore,
Page 5
Q u e s t i o n : 2 5
Calculate the mean for the following distribution:
x: 5 6 7 8 9
f: 4 8 14 11 3
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 6
Find the mean of the following data:
x: 19 21 23 25 27 29 31
f: 13 15 16 18 16 15 13
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 7
Find the mean of the following distribution:
x: 10 12 20 25 35
f: 3 10 15 7 5
S o l u t i o n :
The given distribution in tabulated form is
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing . Find the sum of all entries in the second and third column to
obtain N and respectively.
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
Hence the mean is
Q u e s t i o n : 2 8
Five coins were simultaneously tossed 1000 times and at each toss the number of heads were observed. The
number of tosses during which 0, 1, 2, 3,4 and 5 heads were obtained are shown in the table below. Find the mean
number of heads per toss.
No. of heads per toss No. of tosses
0
1
2
3
4
5
38
144
342
287
164
25
Total 1000
S o l u t i o n :
The given data can be tabulated in the form
The row of x denotes the number of heads per toss and the row of f denotes the number of tosses.
Prepare the following frequency table of which the first column consists of the number of heads and the second
column the number of tosses frequencies
. Multiply the frequency of each row with the corresponding number of heads to obtain the third column containing
.
Find the sum of all entries in the second and third column to obtain N alreadygiveninthequestion
and respectively. Therefore,
Hence the mean number of heads per toss is
Q u e s t i o n : 2 9
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
S o l u t i o n :
The given distribution in tabulated form is
We have to find the value of p using the information that the mean of the distribution is 20.6.
Prepare the following frequency table of which the first column consists of the values of the variate and the second
column the corresponding frequencies. Multiply the frequency of each row with the corresponding values of
variable to obtain the third column containing .
Find the sum of all entries in the second and third column to obtain N and respectively. Therefore,
The mean is
Read MoreAbout this Document
4.86/5 Rating
Apr 21, 2026 Last updated
Document Description: RD Sharma Solutions: Measures of Central Tendency- 2 for Class 9 2026 is part of Mathematics (Maths) Class 9 preparation. The notes and questions for RD Sharma Solutions: Measures of Central Tendency- 2 have been prepared according to the Class 9 exam syllabus. Information about RD Sharma Solutions: Measures of Central Tendency- 2 covers topics like and RD Sharma Solutions: Measures of Central Tendency- 2 Example, for Class 9 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for RD Sharma Solutions: Measures of Central Tendency- 2.
Introduction of RD Sharma Solutions: Measures of Central Tendency- 2 in English is available as part of our Mathematics (Maths) Class 9 for Class 9 & RD Sharma Solutions: Measures of Central Tendency- 2 in Hindi for Mathematics (Maths) Class 9 course. Download more important topics related with notes, lectures and mock test series for Class 9 Exam by signing up for free. Class 9: RD Sharma Solutions: Measures of Central Tendency- 2
Description
RD Sharma Solutions: Measures of Central Tendency of Maths Class 9 on EduRev - covers important questions, MCQs with answers. Helps you prepare for exam.
Information about RD Sharma Solutions: Measures of Central Tendency- 2
In this doc you can find the meaning of RD Sharma Solutions: Measures of Central Tendency- 2 defined & explained in the simplest way possible. Besides explaining types of RD Sharma Solutions: Measures of Central Tendency- 2 theory, EduRev gives you an ample number of questions to practice RD Sharma Solutions: Measures of Central Tendency- 2 tests, examples and also practice Class 9 tests
Related Searches
Viva Questions, RD Sharma Solutions: Measures of Central Tendency- 2, RD Sharma Solutions: Measures of Central Tendency- 2, Extra Questions, Exam, past year papers, Semester Notes, Important questions, video lectures, shortcuts and tricks, ppt, pdf , Summary, Objective type Questions, mock tests for examination, Sample Paper, Free, MCQs, RD Sharma Solutions: Measures of Central Tendency- 2, Previous Year Questions with Solutions, study material, practice quizzes;