EduSahara™ Worksheet

Question 1

1.

A histogram with data is given below.

Find the mode
.

(i)

47.00
(ii)

57.00
(iii)

52.00
(iv)

62.00
(v)

42.00

Question 2

2.

A histogram diagram with data is given below.

Find the modal class

(i)

28

-

33
(ii)

33

-

38
(iii)

23

-

28
(iv)

18

-

23
(v)

13

-

18

Question 3

3.

Heights of 30 students are given below. Find the first quartile.

Height (in cm)

135

136

137

139

146

165

167

173

175

No. of students

5

3

3

1

7

3

2

3

3

(i)

138
(ii)

135
(iii)

137
(iv)

136
(v)

134

Question 4

4.

A frequency distribution table is given below.
Find the
median .

Class-Interval

12 - 22

22 - 32

32 - 42

42 - 52

52 - 62

62 - 72

72 - 82

82 - 92

Frequency

34

29

38

36

24

35

16

45

(i)

1859
36
(ii)

1787
36
(iii)

149
3
(iv)

1823
36
(v)

1789
36

Question 5

5.

Heights of 26 plants are given below. Find the mode.

Height (in cm)

52

53

58

72

74

75

81

90

97

No. of plants

2

2

3

4

6

3

3

2

1

(i)

73

cm
(ii)

72

cm
(iii)

75

cm
(iv)

76

cm
(v)

74

cm

Question 6

6.

Weights of 21 students are given below. Find the mode.

Weight (in kg)

41

43

47

48

54

55

56

58

59

No. of students

4

1

1

2

3

1

3

3

3

(i)

39

kg
(ii)

41

kg
(iii)

42

kg
(iv)

43

kg
(v)

40

kg

Question 7

7.

Scores of 10 students are given below. Find the median.

Score

74

75

81

88

89

No. of students

1

2

2

2

3

(i)

173
2
(ii)

85
(iii)

171
2
(iv)

169
2

Question 8

8.

Weights of 30 students are given below. Find the median.

Weight (in kg)

40

41

43

49

50

51

52

58

59

No. of students

3

3

5

4

3

3

2

4

3

(i)

50

kg
(ii)

103
2

kg
(iii)

101
2

kg
(iv)

99
2

kg

Question 9

9.

Daily wages of 74 labourers (in ₹) are shown in the given ogive.

(i)

9
(ii)

14
(iii)

8
(iv)

11
(v)

13

Question 10

10.

Which of the following class intervals are in exclusive form?

a)	51 - 61 , 61 - 71 , 71 - 81...
b)	21 - 31 , 32 - 42 , 43 - 53,...
c)	54 - 64 , 65 - 75 , 76 - 86,...
d)	20.5 - 31.5 , 31.5 - 42.5 , 42.5 - 53.5...
e)	21 - 31 , 31 - 41 , 41 - 51,...

(i)

{b,c,e}
(ii)

{c,d}
(iii)

{b,a}
(iv)

{b,a,d}
(v)

{a,d,e}

Question 11

11.

The marks obtained by
62
students in an examination are shown in the given ogive.

Find the number of students who obtained
more
than
5
marks in examination.

(i)

63
(ii)

60
(iii)

61
(iv)

62
(v)

64

Question 12

12.

Rainfall of 11 days are given below. Find the mode.

Rainfall (in mm)

6

7

8

10

13

15

No. of days

3

2

2

1

1

2

(i)

4

mm
(ii)

6

mm
(iii)

5

mm
(iv)

7

mm
(v)

8

mm

Question 13

13.

Ages of 15 students (in years) are given below. Find the mode age.

13

13

14

10

14

13

14

15

12

14

15

15

11

14

14

(i)

12

years
(ii)

14

years
(iii)

13

years
(iv)

15

years
(v)

16

years

Question 14

14.

The given ogive represents the heights of workers (in cm) in a factory.

Find the number of workers whose height is more than
158 cm

(i)

24
(ii)

14
(iii)

19
(iv)

15
(v)

23

Question 15

15.

Scores of 11 students are given below. Find the mode.

Score

72

74

75

78

80

81

85

No. of students

1

1

1

1

2

1

4

(i)

87
(ii)

84
(iii)

86
(iv)

83
(v)

85

Question 16

16.

The following table shows the weights of
101
persons in a group.
Find the
mode weight.

Weight (in kg)

30 - 35

36 - 41

42 - 47

48 - 53

54 - 59

60 - 65

66 - 71

72 - 77

No. of persons

13

7

16

20

7

12

18

8

(i)

1731
34

kg
(ii)

1697
34

kg
(iii)

1665
34

kg
(iv)

1663
34

kg
(v)

832
17

kg

Question 17

17.

Heights of 14 plants (in cm) are given below. Find the median height.

75

85

75

61

51

84

57

86

88

94

88

92

53

85

(i)

173
2

cm
(ii)

85

cm
(iii)

169
2

cm
(iv)

171
2

cm

Question 18

18.

Find the cumulative frequency of class
77

-

83
.

Class-Interval

47 - 53

53 - 59

59 - 65

65 - 71

71 - 77

77 - 83

83 - 89

89 - 95

Frequency

12

12

5

16

13

16

20

13

(i)

77
(ii)

73
(iii)

74
(iv)

75
(v)

71

Question 19

19.

The following table shows the weights of
81
persons in a group.
Find the
median weight.

Weight (in kg)

30 - 35

36 - 41

42 - 47

48 - 53

54 - 59

60 - 65

66 - 71

72 - 77

No. of persons

7

9

14

8

7

20

10

6

(i)

807
14

kg
(ii)

793
14

kg
(iii)

781
14

kg
(iv)

390
7

kg
(v)

779
14

kg

Question 20

20.

If the sum of the following frequency distribution is
25
,

find the value of 'x'.

Value

Frequency

2

2

3

1

4

x

5

4

6

5

7

1

8

2

9

3

10

2

11

4

(i)

-2
(ii)

1
(iii)

0
(iv)

4
(v)

2

Question 21

21.

The following table shows the weights of
60
persons in a group.
Find the
median weight.

Weight (in kg)

10 - 15

15 - 20

20 - 25

25 - 30

30 - 35

No. of persons

16

18

5

11

10

(i)

179
9

kg
(ii)

172
9

kg
(iii)

19

kg
(iv)

170
9

kg
(v)

188
9

kg

Question 22

22.

The marks obtained by 12 students in a test are given below. Find their median marks.

34

2

8

38

19

35

26

12

27

11

4

29

(i)

89
4
(ii)

45
2
(iii)

23
(iv)

43
2
(v)

47
2

Question 23

23.

Find the median of the first 15 odd numbers.

(i)

12
(ii)

16
(iii)

17
(iv)

15
(v)

14

Question 24

24.

The mean and median of a uni-modal grouped data are 62 and 34 respectively. Find the mode of the data.

(i)

120
(ii)

118
(iii)

116
(iv)

119
(v)

117

Question 25

25.

Heights of 42 students are given below. Find the interquartile.

Height (in cm)

125

127

131

139

143

144

159

163

164

165

174

No. of students

2

1

4

5

6

5

5

4

1

3

6

(i)

26
(ii)

25
(iii)

23
(iv)

22
(v)

24

Assignment Key