Mathematics-Statistics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 10 - 18 of 83

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Question 10

Question MCQ▾

Then the excluded number is

Choices

Choice (4)Response

a.

42

b.

38

c.

62

d.

None of the above

Edit

Question 11

Question MCQ▾

The median of the following data 38, 25, 16, 52, 47, 32, 68, 8,11, 74 is

Choices

Choice (4)Response

a.

35

b.

38

c.

47

d.

32

Edit

Question 12

Question MCQ▾

If each entry of a data is increased by 4, then the arithmetic mean

Choices

Choice (4)Response

a.

Decreases by 6

b.

Increases by 4

c.

Remains the same

d.

All of the above

Edit

Question 13

Question MCQ▾

The mean of 774, 776,778, 780 and 782 is

Choices

Choice (4)Response

a.

774

b.

782

c.

776

d.

778

Edit

Question 14

Question MCQ▾

If the arithmetic mean of 8, 12,15, 21, x, 25 is 15, then x is

Choices

Choice (4)Response

a.

4

b.

9

c.

18

d.

11

Edit

Question 15

Question MCQ▾

If each entry of a data is decreased by 1, then the arithmetic mean

Choices

Choice (4)Response

a.

Remains the same

b.

Decreases by 1

c.

Increases by 1

d.

All of the above

Edit

Question 16

Question MCQ▾

The mean of all factors of 76 is

Choices

Choice (4)Response

a.

38.2

b.

23.3

c.

21.1

d.

19

Edit

Question 17

Question MCQ▾

If the arithmetic mean of 5, 13,26, 18, x, 32 is 16, then x is

Choices

Choice (4)Response

a.

2

b.

16

c.

8

d.

4

Edit

Question 18

Question MCQ▾

The daily earnings (in rupees) of 9 workers in a factory are 9, 11, 15, 9, 15, 13, 9,17, 17. The median wage is

Choices

Choice (4)Response

a.

13

b.

9

c.

15

d.

11

Edit