EduSahara™ Worksheet

Question 1

1.

The scores obtained by 13 students in a test are given below. Find the median.
5

4

12

4

19

4

16

15

11

5

12

11

9

(i)

15
(ii)

9

10
13
(iii)

19
(iv)

11
(v)

4

Question 2

2.

The marks obtained by 14 students in a test are given below. Find their median marks.

6

38

47

3

41

48

9

17

45

33

26

15

42

11

(i)

61
2
(ii)

117
4
(iii)

57
2
(iv)

30
(v)

59
2

Question 3

3.

Heights of 13 students (in cm) are given below. Find the median height.

153

166

127

172

154

143

131

132

135

129

140

175

163

(i)

141

cm
(ii)

142

cm
(iii)

145

cm
(iv)

143

cm
(v)

144

cm

Question 4

4.

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

58

57

59

90

94

87

51

60

99

81

94

59

(i)

141
2

cm
(ii)

71

cm
(iii)

143
2

cm
(iv)

145
2

cm

Question 5

5.

Ages of 14 students (in years) are given below. Find the median age.

15

13

15

12

14

13

14

15

14

13

15

11

14

14

(i)

14

years
(ii)

12

years
(iii)

15

years
(iv)

16

years
(v)

13

years

Question 6

6.

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

10

15

12

14

9

15

13

12

15

7

9

8

6

9

10

(i)

10

mm
(ii)

9

mm
(iii)

11

mm
(iv)

8

mm
(v)

12

mm

Question 7

7.

Scores of 11 students are given below. Find the median score.

79

76

70

73

90

85

88

81

86

72

80

(i)

82
(ii)

79
(iii)

80
(iv)

78
(v)

81

Question 8

8.

Temperatures of 12 days (in °C) are given below. Find the median temperature.

33

28

34

33

30

30

28

27

25

31

26

31

(i)

31

°C
(ii)

28

°C
(iii)

30

°C
(iv)

32

°C
(v)

29

°C

Question 9

9.

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

59

51

40

40

54

54

42

51

40

44

42

46

44

54

47

(i)

46

kg
(ii)

47

kg
(iii)

45

kg
(iv)

44

kg
(v)

48

kg

Question 10

10.

Daily wages of 15 labourers (in ₹) are given below. Find the median wage.

339

375

336

469

470

313

473

301

400

414

351

383

435

460

308

(i)

₹

383.00
(ii)

₹

381.00
(iii)

₹

382.00
(iv)

₹

385.00
(v)

₹

384.00

Question 11

11.

Find the median of all prime numbers between 50 and 80.

(i)

66
(ii)

68
(iii)

69
(iv)

67
(v)

64

Question 12

12.

Find the median of all the factors of 40.

(i)

7
(ii)

11
2
(iii)

25
4
(iv)

15
2
(v)

13
2

Question 13

13.

Find the median of first 5 whole numbers.

(i)

1
(ii)

2
(iii)

5
(iv)

3
(v)

-1

Question 14

14.

Find the median of all the factors of 30.

(i)

11
2
(ii)

21
4
(iii)

9
2
(iv)

13
2
(v)

6

Question 15

15.

Find the median of the first 20 odd numbers.

(i)

21
(ii)

19
(iii)

18
(iv)

20
(v)

23

Question 16

16.

Find the median of the first 15 even numbers.

(i)

19
(ii)

16
(iii)

17
(iv)

15
(v)

13

Question 17

17.

Given an even number of random samples with the middle two samples as

find the value of x.

(i)

4
(ii)

6
(iii)

10
(iv)

7
(v)

8

Question 18

18.

Given an even number of random samples with the middle two samples as

find the value of x.

(i)

6
(ii)

3
(iii)

5
(iv)

4
(v)

1

Question 19

19.

The observations of an ungrouped data are
x

1
,
x

2
,
2x

1
and
x

1
<
x

2
<
2x

1
.

If the mean and median of the data are equal to
15
,

find the observations of the data

(i)
20

,

15

,

40
(ii)
10

,

15

,

20
(iii)
11

,

15

,

22
(iv)
14

,

15

,

24

Question 20

20.

The observations of an ungrouped data are
x

1
,
x

2
,
x

3
and
x

1
<
x

2
<
x

3
.

(i)
18

,

36

,

108
(ii)
20

,

36

,

110
(iii)
36

,

36

,

216
(iv)
22

,

36

,

112

Assignment Key