EduSahara™ Worksheet

Question 1

1.

The scores obtained by 8 students in a test are given below. Find the median.
4

14

3

9

16

1

17

17

(i)

17
(ii)

16
(iii)

11

1
2
(iv)

10

1
8
(v)

1

Question 2

2.

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

31

50

41

3

27

41

2

30

38

5

1

42

11

14

(i)

59
2
(ii)

113
4
(iii)

29
(iv)

57
2
(v)

55
2

Question 3

3.

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

127

166

143

151

159

140

152

140

175

162

158

132

(i)

305
2

cm
(ii)

307
2

cm
(iii)

152

cm
(iv)

303
2

cm

Question 4

4.

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

94

77

93

98

89

75

63

99

57

71

51

(i)

75

cm
(ii)

77

cm
(iii)

79

cm
(iv)

78

cm
(v)

76

cm

Question 5

5.

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

10

15

12

10

15

13

10

14

11

11

11

10

(i)

12

years
(ii)

11

years
(iii)

9

years
(iv)

10

years
(v)

13

years

Question 6

6.

Rainfall of 12 days (in mm) are given below. Find the median rainfall.

14

15

14

7

12

13

14

15

5

9

5

7

(i)

29
2

mm
(ii)

13

mm
(iii)

27
2

mm
(iv)

25
2

mm

Question 7

7.

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

84

84

74

86

74

86

70

80

81

81

81

(i)

83
(ii)

81
(iii)

82
(iv)

80
(v)

79

Question 8

8.

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

34

35

27

31

34

25

25

28

34

33

31

33

33

31

(i)

34

°C
(ii)

31

°C
(iii)

30

°C
(iv)

32

°C
(v)

33

°C

Question 9

9.

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

53

51

55

56

51

44

46

54

40

46

59

(i)

50

kg
(ii)

49

kg
(iii)

51

kg
(iv)

53

kg
(v)

52

kg

Question 10

10.

Daily wages of 14 labourers (in ₹) are given below. Find the median wage.

420

447

342

362

301

354

396

341

383

313

443

459

346

363

(i)

₹

363.50
(ii)

₹

364.50
(iii)

₹

362.50
(iv)

₹

363.00

Question 11

11.

Find the median of all prime numbers between 10 and 100.

(i)

49
(ii)

45
(iii)

46
(iv)

47
(v)

48

Question 12

12.

Find the median of all the factors of 20.

(i)

7
2
(ii)

9
2
(iii)

5
(iv)

17
4
(v)

11
2

Question 13

13.

Find the median of first 6 whole numbers.

(i)

9
4
(ii)

5
2
(iii)

3
2
(iv)

3
(v)

7
2

Question 14

14.

Find the median of all the factors of 30.

(i)

6
(ii)

11
2
(iii)

13
2
(iv)

9
2
(v)

21
4

Question 15

15.

Find the median of the first 20 odd numbers.

(i)

20
(ii)

17
(iii)

19
(iv)

21
(v)

22

Question 16

16.

Find the median of the first 20 even numbers.

(i)

20
(ii)

21
(iii)

18
(iv)

24
(v)

22

Question 17

17.

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

find the value of x.

(i)

5
(ii)

1
(iii)

2
(iv)

-1
(v)

3

Question 18

18.

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

find the value of x.

(i)

0
(ii)

4
(iii)

6
(iv)

3
(v)

2

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
30
,

find the observations of the data

(i)
40

,

30

,

80
(ii)
21

,

30

,

42
(iii)
20

,

30

,

40
(iv)
24

,

30

,

44

Question 20

20.

The observations of an ungrouped data are
x

1
,
x

2
,
x

3
and
x

1
<
x

2
<
x

3
.

(i)
12

,

24

,

72
(ii)
24

,

24

,

144
(iii)
14

,

24

,

74
(iv)
16

,

24

,

76

Assignment Key