Read and download free pdf of CBSE Class 10 Mathematics Statistics Worksheet Set I. Students and teachers of Class 10 Mathematics can get free printable Worksheets for Class 10 Mathematics Chapter 14 Statistics in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 10 students should practice questions and answers given here for Mathematics in Class 10 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 10 Mathematics Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests
Worksheet for Class 10 Mathematics Chapter 14 Statistics
Class 10 Mathematics students should refer to the following printable worksheet in Pdf for Chapter 14 Statistics in Class 10. This test paper with questions and answers for Class 10 will be very useful for exams and help you to score good marks
Class 10 Mathematics Worksheet for Chapter 14 Statistics
CBSE Class 10 Maths Worksheet - Statistics (8). Students can download these worksheets and practice them. This will help them to get better marks in examinations. Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.
STATICTICS
(i) Assumed Mean method or Shortcut method
Mean =
= a +
Where a = assumed mean
And di= Xi - a
(ii) Step deviation method.
Mean =
= a +
Where a = assumed mean
h = class size
And ui= (Xi – a)/h
Median of a grouped frequency distribution can be calculated by
Median = l +
Where
l = lower limit of median class
n = number of observations
cf = cumulative frequency of class preceding the median class
f = frequency of median class
h = class size of the median class.
Mode of grouped data can be calculated by the following formula.
Mode = l +
Where
l = lower limit of modal class
h = size of class interval
f1 = Frequency of the modal class
fo = frequency of class preceding the modal class
f2= frequency of class succeeding the modal class
Empirical relationship between the three measures of central tendency.
3 Median = Mode + 2 Mean
Or, Mode = 3 Median – 2 Mean
Ogive
Ogive is the graphical representation of the cumulative frequency distribution. It is of two types:
(i) Less than type ogive.
(ii) More than type ogive
Median by graphical method
The x-coordinated of the point of intersection of ‘less than ogive’ and ‘more than ogive’ gives the median.
LEVEL – I
Slno
Question
1
What is the mean of 1st ten prime numbers?
2
What measure of central tendency is represented by the abscissa of the point where less than ogive and more than ogive intersect?
3
If the mode of a data is 45 and mean is 27, then median is ___________.
4
Find the mode of the following
Xi
35
38
40
42
44
fi
5
9
10
7
2
5
Write the median class of the following distribution.
Class
0-10
10-20
20-30
30-40
40-50
50-60
60-70
Frequency
4
4
8
10
12
8
4
6
The wickets taken by a bowler in 10 cricket matches are as follows: 2, 6 ,4 ,5, 0, 2, 1, 3, 2, 3 Find the mode of the data
7.
How one can find median of a frequency distribution graphically
8.
What important information one can get by the abscissa of the point of intersection of the less than type and the more than type commulative frequency curve of a group data
LEVEL – II
Slno
Question
Ans
1
Find the median of the following frequency distribution
Height in cm
160-162
163-165
166-168
169-171
172-174
Frequency
15
117
136
118
14
167
2
Given below is the distribution of IQ of the 100 students. Find the median IQ
IQ
75-84
85-94
95-104
105-114
115-124
125-134
135-144
Frequency
8
11
26
31
18
4
2
106.1
3
Find the median of the following distribution
Class interval
0-10
10-20
20-30
30-40
40-50
50-60
Frequency
5
8
20
15
7
5
28.5
4
A class teacher has the following absentee record of 40 students of a class for the whole
term.
No. of days
0-6
6-10
10-14
14-20
20-28
28-38
38-40
No. of students
11
10
7
4
4
3
1
Write the above distribution as less than type cumulative frequency distribution.
5
Using the assumed mean method find the mean of the following data.
Class interval
0-10
10-20
20-30
30-40
40-50
frequency
7
8
12
13
10
Ans
27.2
6
Name the keyword used for central tendency
Mean , median , mode
LEVEL – III
SN
Question
Ans
1
If the mean distribution is 25
Class
0-10
10-20
20-30
30-40
40-50
Frequency
5
18
15
P
6
Then find p.
P=16
2
Find the mean of the following frequency distribution using step deviation method
Class
0-10
10-20
20-30
30-40
40-50
Frequency
7
12
13
10
8
25
3
Find the value of p if the median of the following frequency distribution is 50
Class
20-30
30-40
40-50
50-60
60-70
70-80
80-90
Frequency
25
15
P
6
24
12
8
P=10
4
Find the median of the following data
Marks
Less Than 10
Less Than 30
Less Than 50
Less Than 70
Less Than 90
Less Than 110
Less Than 130
Less than 150
Frequency
0
10
25
43
65
87
96
100
.
76.36
5
Compare the modal ages of two groups of students appearing for entrance examination.
Age in yrs
16-18
18-20
20-22
22-24
24-26
Group A
50
78
46
28
23
Please click the link below to download CBSE Class 10 Maths Worksheet - Statistics (8)
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CBSE Class 10 Mathematics Chapter 14 Statistics Worksheet
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Worksheet for Mathematics CBSE Class 10 Chapter 14 Statistics
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Chapter 14 Statistics worksheet Mathematics CBSE Class 10
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Chapter 14 Statistics CBSE Class 10 Mathematics Worksheet
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Worksheet for CBSE Mathematics Class 10 Chapter 14 Statistics
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