EduSahara™ Worksheet

Question 1

1.

The scores obtained by 10 students in a test are given below. Find the mean score.
2

11

10

11

16

12

17

13

8

10

(i)

11
(ii)

15
(iii)

17
(iv)

10
(v)

2

Question 2

2.

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

6

14

6

11

10

8

9

11

13

12

7

14

10

14

11

(i)

52
5

mm
(ii)

54
5

mm
(iii)

53
5

mm
(iv)

57
5

mm
(v)

62
5

mm

Question 3

3.

Scores of 12 students are given below. Find the mean score.

88

83

78

85

85

75

89

84

88

88

82

82

(i)

1009
12
(ii)

1031
12
(iii)

1019
12
(iv)

1007
12
(v)

84

Question 4

4.

Temperatures of 13 days (in °C) are given below. Find the mean temperature.

28

33

32

25

33

34

27

30

31

26

26

27

28

(i)

380
13

°C
(ii)

406
13

°C
(iii)

381
13

°C
(iv)

382
13

°C
(v)

393
13

°C

Question 5

5.

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

58

58

42

47

47

45

52

48

52

42

44

(i)

537
11

kg
(ii)

546
11

kg
(iii)

557
11

kg
(iv)

536
11

kg
(v)

535
11

kg

Question 6

6.

Daily wages of 11 labourers (in ₹) are given below. Find the mean wage.

433

344

401

315

435

348

466

355

342

327

423

(i)

₹

380.82
(ii)

₹

381.00
(iii)

₹

382.82
(iv)

₹

380.91
(v)

₹

381.82

Question 7

7.

Find the mean of all prime numbers between 40 and 70.

(i)

56
(ii)

53
(iii)

52
(iv)

54
(v)

51

Question 8

8.

Find the mean of all prime numbers between 50 and 90.

(i)

635
9
(ii)

495
7
(iii)

775
11
(iv)

211
3
(v)

637
9

Question 9

9.

Find the mean of first 8 multiples of 8.

(i)

37
(ii)

36
(iii)

34
(iv)

35
(v)

38

Question 10

10.

Find the mean of first 7 whole numbers.

(i)

3
(ii)

1
(iii)

4
(iv)

5
(v)

2

Question 11

11.

Find the mean of first 5 multiples of 11.

(i)

32
(ii)

30
(iii)

34
(iv)

36
(v)

33

Question 12

12.

Find the mean of the first 20 odd numbers.

(i)

19
(ii)

17
(iii)

21
(iv)

23
(v)

20

Question 13

13.

Find the mean of the first 10 even numbers.

(i)

14
(ii)

12
(iii)

9
(iv)

10
(v)

11

Question 14

14.

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

33

13

6

30

27

35

6

19

6

45

28

29

(i)

231
10
(ii)

277
12
(iii)

275
12
(iv)

93
4
(v)

323
14

Question 15

15.

Heights of 14 students (in cm) are given below. Find the mean height.

136

147

145

166

130

151

143

169

171

133

138

133

126

125

(i)

1007
7

cm
(ii)

2027
14

cm
(iii)

2015
14

cm
(iv)

2013
14

cm
(v)

2041
14

cm

Question 16

16.

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

78

67

60

77

56

98

94

55

78

73

63

70

93

60

(i)

75

cm
(ii)

73

cm
(iii)

72

cm
(iv)

74

cm
(v)

71

cm

Question 17

17.

Ages of 10 students (in years) are given below. Find the mean age.

15

15

15

13

12

10

12

14

12

10

(i)

69
5

years
(ii)

66
5

years
(iii)

74
5

years
(iv)

13

years
(v)

64
5

years

Assignment Key