EduSahara™ Worksheet

Question 1

1.

The scores obtained by 12 students in a test are given below. Find the mean score.
5

6

9

17

3

12

14

1

18

4

16

14

(i)

14
(ii)

17
(iii)

9

11
12
(iv)

1
(v)

10

1
2

Question 2

2.

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

8

10

10

5

7

11

8

5

11

9

6

7

6

12

6

(i)

121
15

mm
(ii)

122
15

mm
(iii)

136
15

mm
(iv)

41
5

mm
(v)

151
15

mm

Question 3

3.

Scores of 14 students are given below. Find the mean score.

87

85

87

77

72

78

90

80

84

89

83

84

78

86

(i)

580
7
(ii)

587
7
(iii)

83
(iv)

582
7
(v)

594
7

Question 4

4.

Temperatures of 14 days (in °C) are given below. Find the mean temperature.

28

28

35

34

31

25

32

25

32

33

30

28

27

34

(i)

218
7

°C
(ii)

211
7

°C
(iii)

213
7

°C
(iv)

225
7

°C
(v)

212
7

°C

Question 5

5.

Weights of 10 students (in kg) are given below. Find the mean weight.

55

52

41

41

56

52

57

51

58

51

(i)

262
5

kg
(ii)

257
5

kg
(iii)

258
5

kg
(iv)

267
5

kg
(v)

259
5

kg

Question 6

6.

Daily wages of 12 labourers (in ₹) are given below. Find the mean wage.

353

413

380

446

388

465

382

444

318

378

302

389

(i)

₹

390.17
(ii)

₹

389.17
(iii)

₹

388.17
(iv)

₹

388.50
(v)

₹

388.33

Question 7

7.

Find the mean of all prime numbers between 20 and 80.

(i)

50
(ii)

51
(iii)

52
(iv)

48
(v)

53

Question 8

8.

Find the mean of all prime numbers between 30 and 70.

(i)

49
(ii)

439
9
(iii)

437
9
(iv)

535
11

Question 9

9.

Find the mean of first 5 multiples of 16.

(i)

50
(ii)

48
(iii)

47
(iv)

49
(v)

46

Question 10

10.

Find the mean of first 8 whole numbers.

(i)

13
4
(ii)

5
2
(iii)

7
2
(iv)

4
(v)

9
2

Question 11

11.

Find the mean of first 10 multiples of 6.

(i)

31
(ii)

36
(iii)

34
(iv)

33
(v)

32

Question 12

12.

Find the mean of the first 20 odd numbers.

(i)

19
(ii)

20
(iii)

17
(iv)

22
(v)

21

Question 13

13.

Find the mean of the first 15 even numbers.

(i)

17
(ii)

15
(iii)

16
(iv)

18
(v)

14

Question 14

14.

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

5

23

5

22

33

47

3

46

42

27

44

47

(i)

88
3
(ii)

30
(iii)

86
3
(iv)

142
5
(v)

28

Question 15

15.

Heights of 10 students (in cm) are given below. Find the mean height.

150

148

162

150

149

164

161

126

138

164

(i)

758
5

cm
(ii)

757
5

cm
(iii)

766
5

cm
(iv)

756
5

cm
(v)

761
5

cm

Question 16

16.

Heights of 12 plants (in cm) are given below. Find the mean height.

80

62

59

80

78

89

91

99

95

50

53

56

(i)

75

cm
(ii)

223
3

cm
(iii)

229
3

cm
(iv)

226
3

cm
(v)

224
3

cm

Question 17

17.

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

15

13

15

14

11

15

12

15

14

15

11

10

14

11

10

(i)

11

years
(ii)

15

years
(iii)

13

years
(iv)

12

years
(v)

14

years

Assignment Key