EduSahara™ Worksheet

Question 1

1.

The scores obtained by 11 students in a test are given below. Find the mean score.
6

11

19

10

5

11

2

7

7

18

18

(i)

10

4
11
(ii)

10
(iii)

17
(iv)

19
(v)

7

Question 2

2.

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

10

10

7

7

13

8

13

15

10

10

(i)

103
10

mm
(ii)

123
10

mm
(iii)

21
2

mm
(iv)

52
5

mm
(v)

113
10

mm

Question 3

3.

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

80

80

88

88

85

86

87

72

78

71

76

76

78

(i)

1071
13
(ii)

1047
13
(iii)

1058
13
(iv)

1045
13
(v)

1046
13

Question 4

4.

Temperatures of 15 days (in °C) are given below. Find the mean temperature.

32

25

35

31

33

34

32

33

28

34

35

28

33

31

29

(i)

473
15

°C
(ii)

503
15

°C
(iii)

95
3

°C
(iv)

158
5

°C
(v)

488
15

°C

Question 5

5.

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

52

41

49

48

51

53

45

46

56

54

(i)

50

kg
(ii)

103
2

kg
(iii)

99
2

kg
(iv)

101
2

kg

Question 6

6.

Daily wages of 10 labourers (in ₹) are given below. Find the mean wage.

498

336

468

479

486

487

426

452

469

457

(i)

₹

456.00
(ii)

₹

455.80
(iii)

₹

457.80
(iv)

₹

456.80
(v)

₹

456.20

Question 7

7.

Find the mean of all prime numbers between 40 and 90.

(i)

257
4
(ii)

509
8
(iii)

385
6
(iv)

127
2
(v)

383
6

Question 8

8.

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

(i)

553
15
(ii)

479
13
(iii)

183
5
(iv)

623
17
(v)

551
15

Question 9

9.

Find the mean of first 7 multiples of 3.

(i)

14
(ii)

13
(iii)

11
(iv)

9
(v)

12

Question 10

10.

Find the mean of first 8 whole numbers.

(i)

13
4
(ii)

9
2
(iii)

4
(iv)

7
2
(v)

5
2

Question 11

11.

Find the mean of first 8 multiples of 17.

(i)

305
4
(ii)

151
2
(iii)

153
2
(iv)

155
2
(v)

77

Question 12

12.

Find the mean of the first 10 odd numbers.

(i)

13
(ii)

9
(iii)

11
(iv)

7
(v)

10

Question 13

13.

Find the mean of the first 20 even numbers.

(i)

20
(ii)

24
(iii)

18
(iv)

22
(v)

21

Question 14

14.

The marks obtained by 13 students in a test are given below. Find their mean marks.

1

33

33

25

15

35

7

47

33

2

23

47

8

(i)

263
11
(ii)

311
13
(iii)

309
13
(iv)

307
13
(v)

71
3

Question 15

15.

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

150

134

171

128

136

158

146

174

157

147

158

126

(i)

597
4

cm
(ii)

149

cm
(iii)

603
4

cm
(iv)

599
4

cm
(v)

595
4

cm

Question 16

16.

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

52

81

81

80

86

74

69

71

50

83

68

(i)

797
11

cm
(ii)

795
11

cm
(iii)

806
11

cm
(iv)

817
11

cm
(v)

796
11

cm

Question 17

17.

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

10

13

12

13

13

15

15

12

13

13

10

14

12

13

15

(i)

208
15

years
(ii)

193
15

years
(iii)

223
15

years
(iv)

13

years
(v)

194
15

years

Assignment Key