EduSahara™ Worksheet

Question 1

1.

The weights of
96
persons in a group are shown below.

Find the mode
weight
.

(i)

43.41 kg
(ii)

45.91 kg
(iii)

50.91 kg
(iv)

40.91 kg
(v)

48.41 kg

Question 2

2.

The following table shows the weights of
90
persons in a group.
Find the
mode weight.

Weight (in kg)

40 - 47

47 - 54

54 - 61

61 - 68

68 - 75

75 - 82

82 - 89

No. of persons

6

13

14

14

15

18

10

(i)

868
11

kg
(ii)

77

kg
(iii)

857
11

kg
(iv)

846
11

kg
(v)

848
11

kg

Question 3

3.

A histogram with data is given below.

Find the mode
.

(i)

45.20
(ii)

41.45
(iii)

52.70
(iv)

37.70
(v)

48.95

Question 4

4.

The daily wages of
106
workers in a factory are given below.

Find the mode
wage
.

(i)

₹307.27
(ii)

₹302.27
(iii)

₹304.77
(iv)

₹312.27
(v)

₹309.77

Question 5

5.

The marks obtained by 11 students in a test are given below. Find their median marks.

43

28

42

24

2

21

43

12

21

4

40

(i)

25
(ii)

24
(iii)

21
(iv)

23
(v)

26

Question 6

6.

Heights of 10 plants (in cm) are given below. Find the median height.

69

55

99

97

75

57

80

74

80

74

(i)

149
2

cm
(ii)

151
2

cm
(iii)

75

cm
(iv)

153
2

cm

Question 7

7.

The histogram given below represents the marks obtained by some candidates in an examination.

Using data in the diagram, calculate the
median
marks.

(i)

74.28
(ii)

72.28
(iii)

75.28
(iv)

73.28
(v)

71.28

Question 8

8.

Weights of 11 students (in kg) are given below. Find the mode weight.

54

51

48

58

46

57

58

42

56

58

58

(i)

58

kg
(ii)

56

kg
(iii)

60

kg
(iv)

59

kg
(v)

57

kg

Question 9

9.

The marks obtained by certain students in a mathematics examination are given below. Estimate the median.

(i)

41.25
(ii)

36.25
(iii)

46.25
(iv)

38.75
(v)

43.75

Question 10

10.

In a class test, the marks obtained by
10
students are

12

30

41

41

29

44

42

47

42

12

Find the inter quartile range.

(i)

20

1
2
(ii)

34
(iii)

42
(iv)

21

1
2
(v)

35

Question 11

11.

The marks obtained by
78
students in an examination are shown in the given ogive.

Find the number of students who obtained less than
60
marks in the examination.

(i)

42
(ii)

44
(iii)

37
(iv)

32
(v)

30

Question 12

12.

Scores of 67 students are shown in the given ogive.

(i)

25
(ii)

29
(iii)

30
(iv)

24
(v)

27

Question 13

13.

Heights of 11 plants (in cm) are given below. Find the mode height.

82

98

89

100

65

85

83

63

77

60

60

(i)

58

cm
(ii)

61

cm
(iii)

62

cm
(iv)

59

cm
(v)

60

cm

Question 14

14.

Temperatures of 10 days (in °C) are given below. Find the median temperature.

25

26

26

29

30

33

26

31

34

30

(i)

63
2

°C
(ii)

30

°C
(iii)

61
2

°C
(iv)

59
2

°C

Question 15

15.

Ages of 13 students (in years) are given below. Find the mode age.

13

13

15

13

11

12

11

10

14

11

12

13

13

(i)

12

years
(ii)

15

years
(iii)

14

years
(iv)

13

years
(v)

11

years

Question 16

16.

The marks obtained by certain students in a mathematics examination are given below. Estimate the lower quartile.

(i)

41.46
(ii)

43.96
(iii)

33.96
(iv)

36.46
(v)

38.96

Question 17

17.

If the sum of the following frequency distribution is
27
,

find the value of 'x'.

Value

Frequency

2

3

3

3

4

4

5

1

6

2

7

4

8

2

9

x

10

3

11

1

(i)

1
(ii)

4
(iii)

5
(iv)

7
(v)

3

Question 18

18.

The daily wages of
110
workers in a factory are given below.
Find the
mode wage.

Wage (in rupees)

30 - 39

40 - 49

50 - 59

60 - 69

70 - 79

80 - 89

No. of workers

19

9

19

29

14

20

(i)

₹

64.00
(ii)

₹

65.50
(iii)

₹

63.50
(iv)

₹

64.50

Question 19

19.

Ages of 26 students are given below. Find the mode.

Age (in years)

10

12

13

14

15

No. of students

4

4

7

6

5

(i)

11

years
(ii)

12

years
(iii)

14

years
(iv)

15

years
(v)

13

years

Question 20

20.

Heights of 49 plants (in cm) are shown in the given ogive.

(i)

21
(ii)

20
(iii)

18
(iv)

15
(v)

16

Question 21

21.

Rainfall of 15 days (in mm) are given below. Find the median rainfall.

8

9

8

15

7

11

10

8

11

9

9

11

8

10

15

(i)

10

mm
(ii)

9

mm
(iii)

11

mm
(iv)

8

mm
(v)

7

mm

Question 22

22.

Temperatures of 16 days (in °C) are given below. Find the mode temperature.

28

27

32

32

25

35

33

27

27

30

35

34

33

29

33

27

(i)

28

°C
(ii)

26

°C
(iii)

27

°C
(iv)

29

°C
(v)

25

°C

Question 23

23.

Daily wages of 69 labourers (in ₹) are shown in the given ogive.

(i)

59
(ii)

57
(iii)

61
(iv)

56
(v)

62

Question 24

24.

The scores obtained by 15 students in a test are given below. Find the mode.
4

18

19

14

15

3

4

17

7

4

2

25

24

28

23

(i)

4
(ii)

2
(iii)

28
(iv)

26
(v)

14

1
2

Question 25

25.

The mean and median of a uni-modal grouped data are 42 and 40 respectively. Find the mode of the data.

(i)

45
(ii)

46
(iii)

47
(iv)

48
(v)

44

Assignment Key