NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 646 - 654 of 2000

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Question number: 646

» Mathematics » Statistics

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MCQ▾

Question

If 3,7, 8 and 4 occur with frequencies 2,6, 7 and 3 respectively, then the arithmetic mean is

Choices

Choice (4)Response

a.

18

b.

6.44

c.

6.2

d.

8

Question number: 647

» Mathematics » Number Systems

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MCQ▾

Question

Which of the following statements is true?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 648

» Mathematics » Heron's Formula

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MCQ▾

Question

In a quadrilateral the sides are 8,15,13,18 units and the angle between first sides is a right angle. The area of quadrilateral is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 649

» Biology » Fundamentals Unit of Life

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MCQ▾

Question

Centrosome is present in

Choices

Choice (4)Response

a.

Mitochondria

b.

Cytoplasm

c.

ER

d.

Nucleus

Question number: 650

» Mathematics » Number Systems

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MCQ▾

Question

equals

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 651

» Mathematics » Probability

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MCQ▾

Question

A bag contains 6 blue and 9 black balls. If a ball is drawn at random, the probability that the drawn ball to blue is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 652

» Mathematics » Number Systems

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MCQ▾

Question

The value of x from

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question number: 653

» Mathematics » Statistics

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MCQ▾

Question

The mean of 15 numbers is 35. If 5 is added to each of the first five numbers, then the mean of the new set of 15 numbers is

Choices

Choice (4)Response

a.

30

b.

45.51

c.

36.67

d.

37

Question number: 654

» Mathematics » Polynomials

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MCQ▾

Question

If and , then the value of is:

Choices

Choice (4)Response

a.

704

b.

407

c.

470

d.

308

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