EduSahara™ Worksheet

Question 1

1.

The scores obtained by 10 students in a test are given below. Find the mean score.
11

11

16

4

11

3

7

1

2

14

(i)

1
(ii)

16
(iii)

8
(iv)

11
(v)

9

Question 2

2.

Rainfall of 10 days (in mm) are given below. Find the mean rainfall.

12

5

6

15

10

5

10

11

12

9

(i)

21
2

mm
(ii)

19
2

mm
(iii)

23
2

mm
(iv)

10

mm

Question 3

3.

Scores of 13 students are given below. Find the mean score.

70

79

79

70

85

72

88

87

86

80

85

75

84

(i)

81
(ii)

80
(iii)

79
(iv)

82
(v)

78

Question 4

4.

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

35

30

30

32

27

28

27

25

25

34

(i)

293
10

°C
(ii)

313
10

°C
(iii)

59
2

°C
(iv)

303
10

°C
(v)

147
5

°C

Question 5

5.

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

46

42

40

42

45

48

60

43

50

42

58

(i)

518
11

kg
(ii)

527
11

kg
(iii)

538
11

kg
(iv)

516
11

kg
(v)

47

kg

Question 6

6.

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

393

438

353

495

318

376

443

413

314

382

393

(i)

₹

394.55
(ii)

₹

392.73
(iii)

₹

392.64
(iv)

₹

393.55
(v)

₹

392.55

Question 7

7.

Find the mean of all prime numbers between 10 and 70.

(i)

553
15
(ii)

183
5
(iii)

479
13
(iv)

551
15
(v)

623
17

Question 8

8.

Find the mean of all prime numbers between 10 and 70.

(i)

553
15
(ii)

183
5
(iii)

479
13
(iv)

623
17
(v)

551
15

Question 9

9.

Find the mean of first 8 multiples of 7.

(i)

32
(ii)

61
2
(iii)

125
4
(iv)

63
2
(v)

65
2

Question 10

10.

Find the mean of first 5 whole numbers.

(i)

3
(ii)

1
(iii)

4
(iv)

-1
(v)

2

Question 11

11.

Find the mean of first 5 multiples of 7.

(i)

22
(ii)

21
(iii)

23
(iv)

18
(v)

20

Question 12

12.

Find the mean of the first 10 odd numbers.

(i)

8
(ii)

10
(iii)

11
(iv)

12
(v)

9

Question 13

13.

Find the mean of the first 15 even numbers.

(i)

16
(ii)

17
(iii)

14
(iv)

15
(v)

18

Question 14

14.

The marks obtained by 15 students in a test are given below. Find their mean marks.

23

22

15

11

11

24

21

9

39

46

27

14

21

28

41

(i)

70
3
(ii)

398
17
(iii)

306
13
(iv)

118
5
(v)

352
15

Question 15

15.

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

142

155

137

144

145

148

140

175

173

133

149

168

(i)

605
4

cm
(ii)

151

cm
(iii)

607
4

cm
(iv)

611
4

cm
(v)

603
4

cm

Question 16

16.

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

85

52

79

67

99

73

81

91

81

94

99

(i)

903
11

cm
(ii)

82

cm
(iii)

923
11

cm
(iv)

901
11

cm
(v)

912
11

cm

Question 17

17.

Ages of 12 students (in years) are given below. Find the mean age.

15

15

13

14

15

11

10

11

11

13

12

14

(i)

13

years
(ii)

89
6

years
(iii)

79
6

years
(iv)

83
6

years
(v)

77
6

years

Assignment Key