Important Questions of Statistics Mathematics | Zigya

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 Multiple Choice QuestionsShort Answer Type

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281.

Find the mode of the distribution from the following data.

Class

Frequcncy

10-15

3

15-20

2

20-25

10

25-30

7

30-35

20

35-40

5

40-45

8

94 Views

282.

Determine the value of mode from the following frequency distribution table.

Murks (C.I.)

No. of students (f)

0-10

5

10-20

12

20-30

14

30-40

10

40-50

8

50-60

6

247 Views

 Multiple Choice QuestionsLong Answer Type

283.

The marks distribution of 30 students in a mathematics are given in the table. Find the mode of this data. Also compare and interpret the mode and mean.

Class interval

Number of students (f)

10-25

2

25-40

3

40-55

7

55-70

6

70-85

6

85-100

6

235 Views

 Multiple Choice QuestionsShort Answer Type

284.

The following table shows the marks obtained by 100 students of class X in a school during a particular academic session. Find the mode of this distribution.

Marks

No. of students

Less than 10

7

Less than 20

21

Less than 30

34

Less than 40

46

Less than 50

66

Less than 60

77

Less than 70

92

Less than 80

100

3134 Views

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285.

Calculate the median of the following distribution of incomes of employees of a company.

Income

No. of Persons

400-500

25

500-600

69

600-700

107

700-800

170

800-900

201

900-1000

142

1000-1100

64

361 Views

 Multiple Choice QuestionsLong Answer Type

286.

Find the mean, mode and median for the following data :

Class

0-10

10-20

20-30

30-40

40-50

Total

Frequency

8

16

36

34

6

100

388 Views

 Multiple Choice QuestionsShort Answer Type

287.

The median of the following data is 52.5. Find the values of x and y if the total frequency is 100. 

Class Interval

Frequency

0-10

2

10-20

5

20-30

x

30-40

12

40-50

17

50-60

20

60-70

y

70-80

9

80-90

7

90-100

4

 

Total 100

1979 Views

288.

Calculate the median from the following data:

Value

Frequency

Less than 10

4

Less than 20

16

Less than 30

40

Less than 40

76

Less than 50

96

Lc9s than 60

112

Less than 70

120

Less than 80

125

1819 Views

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289.

Calculate the median from the following data:

Size

Frequency

More than 50

0

More than 40

40

More than 30

98

More than 20

123

More than 10

165

 
193 Views

 Multiple Choice QuestionsLong Answer Type

290.

The median of the following data is 20.75. Find the missing frequencies x and y, if the total frequency is 100.  

Class Interval

0 - 5

5 - 10

10 - 15

15 - 20

20 - 25

25 - 30

30 - 35

35 - 40

Frequency

7

10

x

13

y

10

14

9

7298 Views

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