Important Questions of Statistics Mathematics | Zigya

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91. If the mean of 5, 7, 9, x is 9, then the value of x is
  • 11
  • 15

  • 18

  • 18

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92. The median of the distribution 2, 3, 4, 7, 5, 1 is
  • 4
  • 7
  • 11

  • 11

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93. The median of the distribution 1, 3, 2, 5, 9 is
  • 3

  • 4

  • 2

  • 2

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94.

The mode of the distribution 3, 5, 7, 4, 2, 1, 4, 3, 4 is

 

  • 7

  • 4

  • 3

  • 3

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95.

The number of students of a school according to their age is as follows:

Age (in years)

Number of students

8

18

9

25

10

40

11

36

12

41

13

37

14

20

15

13

16

5

17

3

Their mode is

  • 41
  • 12

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96.

The number of family members of 30 families of a village is according to the following table. Find their mode.

Number of family members

Number of families

2

1

3

2

4

4

5

6

6

10

7

3

8

5

  • 6

  • 5

  • 7

  • 7

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97.

The marks of some students are given below. Find the mode of marks.

Marks

Number of students

10

2

20

8

30

16

40

26

50

20

60

16

70

7

80

4

  • 60 
  • 50

  • 30

  • 30

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98.

The ages of 20 students of a class in years are as follows:

15 16 13 14 14

13 15 14 13 13

14 12 15 14 16

13 14 14 13 15

Their mode is

  • 13 years
  • 14 years
  • 15 years
  • 15 years
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99.

The median of the variate values

25 34 33 13 20

26 36 28 19 34

is

  • 26

  • 27

  • 28

  • 28

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100.

The median of the data=

19 25 59 48 35 31 30 32 51

is

  • 32 
  • 31
  • 30 
  • 30 
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