EduSahara™ Worksheet

Question 1

1.

The following ogive shows the daily wages of workers in a factory. Estimate the median.

(i)

₹113.50
(ii)

₹117.25
(iii)

₹114.75
(iv)

₹116.00
(v)

₹118.50

Question 2

2.

The scores obtained by 8 students in a test are given below. Find the median.
17

3

12

17

13

6

10

6

(i)

3
(ii)

11
(iii)

14
(iv)

6
(v)

10

1
2

Question 3

3.

The following table shows the weights of
87
persons in a group.
Find the
mode weight.

Weight (in kg)

40 - 49

50 - 59

60 - 69

70 - 79

80 - 89

90 - 99

No. of persons

19

10

20

20

5

13

(i)

141
2

kg
(ii)

139
2

kg
(iii)

70

kg
(iv)

143
2

kg

Question 4

4.

Weights of 67 students (in kg) are shown in the given ogive.

(i)

52
(ii)

55
(iii)

49
(iv)

54
(v)

50

Question 5

5.

Daily wages of 46 labourers (in ₹) are shown in the given ogive.

(i)

29
(ii)

34
(iii)

31
(iv)

28
(v)

33

Question 6

6.

Scores of 91 students are shown in the given ogive.

(i)

57
(ii)

54
(iii)

59
(iv)

60
(v)

55

Question 7

7.

The following ogive shows the distribution of the heights of a group of factory workers. Estimate the lower quartile.

(i)

168.57 cm
(ii)

171.07 cm
(iii)

166.07 cm
(iv)

176.07 cm
(v)

173.57 cm

Question 8

8.

Find the median of all prime numbers between 50 and 100.

(i)

74
(ii)

71
(iii)

69
(iv)

72
(v)

73

Question 9

9.

Rainfall of 12 days (in mm) are given below. Find the mode rainfall.

11

14

11

5

10

7

14

13

15

5

10

5

(i)

6

mm
(ii)

5

mm
(iii)

4

mm
(iv)

7

mm
(v)

3

mm

Question 10

10.

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

Using data in the diagram, calculate the
median
marks.

(i)

60.6
(ii)

61.6
(iii)

62.6
(iv)

63.6
(v)

64.6

Question 11

11.

The following ogive shows the daily wages of workers in a factory. Estimate the upper quartile.

(i)

₹250.75
(ii)

₹255.75
(iii)

₹248.25
(iv)

₹245.75
(v)

₹253.25

Question 12

12.

The mean and median of a uni-modal grouped data are 68 and 55 respectively. Find the mode of the data.

(i)

92
(ii)

95
(iii)

94
(iv)

93
(v)

96

Question 13

13.

Weights of 15 students (in kg) are given below. Find the median weight.

60

40

60

40

55

60

52

42

53

40

56

41

57

53

60

(i)

53

kg
(ii)

55

kg
(iii)

54

kg
(iv)

52

kg
(v)

51

kg

Question 14

14.

Find the median of all the factors of 20.

(i)

9
2
(ii)

11
2
(iii)

7
2
(iv)

17
4
(v)

5

Question 15

15.

Temperatures of 25 days are given below. Find the median.

Temperature (in degree C)

25

26

27

28

29

30

31

32

33

35

No. of days

1

2

2

1

2

5

3

3

5

1

(i)

31

°C
(ii)

28

°C
(iii)

30

°C
(iv)

29

°C
(v)

32

°C

Question 16

16.

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

Using data in the diagram, calculate the
mode
marks.

(i)

61
(ii)

60
(iii)

62
(iv)

59
(v)

58

Question 17

17.

Greater than cumulative curves are drawn using

(i)

upper boundaries of classes and less than cumulative frequencies
(ii)

lower boundaries of classes and greater than cumulative frequencies
(iii)

upper boundaries of classes and greater than cumulative frequencies
(iv)

mid values of classes and greater than cumulative frequencies

Question 18

18.

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

Class-Interval

2 - 11

11 - 20

20 - 29

29 - 38

38 - 47

47 - 56

56 - 65

65 - 74

Frequency

23

13

50

4

35

31

38

45

(i)

2076
83
(ii)

1995
83
(iii)

1994
83
(iv)

2159
83
(v)

1993
83

Question 19

19.

The following ogive shows the distribution of the heights of a group of factory workers. Estimate the median.

(i)

154.11 cm
(ii)

151.61 cm
(iii)

155.36 cm
(iv)

156.61 cm
(v)

152.86 cm

Question 20

20.

In a class test, the marks obtained by
12
students are

43

21

35

30

31

42

45

38

42

39

16

38

Find the inter quartile range.

(i)

29
(ii)

35
(iii)

6
(iv)

12
(v)

30

Question 21

21.

A histogram with data is given below.

Find the mode
.

(i)

33.61
(ii)

48.61
(iii)

44.86
(iv)

37.36
(v)

41.11

Question 22

22.

The following histogram gives
the monthly consumption of electricity of
74
consumers in a locality.

Find the mode
units
.

(i)

109.18 units
(ii)

111.68 units
(iii)

106.68 units
(iv)

114.18 units
(v)

116.68 units

Question 23

23.

The daily wages of
108
workers in a factory are given below.

Find the modal class

(i)

230

-

245
(ii)

215

-

230
(iii)

245

-

260
(iv)

200

-

215
(v)

290

-

305

Question 24

24.

A histogram diagram with data is given below.

Find the modal class

(i)

96

-

116
(ii)

16

-

36
(iii)

56

-

76
(iv)

76

-

96
(v)

36

-

56

Question 25

25.

The daily wages of
122
workers in a factory are given below.
Find the
median wage.

Wage (in rupees)

20 - 27

28 - 35

36 - 43

44 - 51

52 - 59

60 - 67

68 - 75

No. of workers

22

18

15

15

22

13

17

(i)

₹

47.70
(ii)

₹

46.80
(iii)

₹

48.70
(iv)

₹

46.90
(v)

₹

46.70

Assignment Key