Mathematics-Statistics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 1 - 9 of 83

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Question number: 1

» Mathematics » Statistics

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Question

The arithmetic mean of first six natural numbers is

Choices

Choice (4)Response

a.

3

b.

28

c.

4

d.

7

Question number: 2

» Mathematics » Statistics

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MCQ▾

Question

The average weight of sample of 6 Oranges is 30 g. Later it was found that the weighing machine had shown the weight of each Orange 5 g less. The correct average weight of an Orange is

Choices

Choice (4)Response

a.

75 g

b.

35 g

c.

55 g

d.

40 g

Question number: 3

» Mathematics » Statistics

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Question

The mean of 7 observations is 58. If one observation, namely 4 is deleted, the new mean is

Choices

Choice (4)Response

a.

61

b.

62

c.

65

d.

67

Question number: 4

» Mathematics » Statistics

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Question

The runs scored by Sachin in 7 test matches are 133,140,138,150,156,148 and 143 respectively. Find his mean.

Choices

Choice (4)Response

a.

144

b.

133

c.

156

d.

148

Question number: 5

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Question

The runs scored by Mahi in 5 test matches are 150,163,158,160 and 164 respectively. Find his mean.

Choices

Choice (4)Response

a.

164

b.

158

c.

150

d.

159

Question number: 6

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Question

The mean of first five multiples of 5 is

Choices

Choice (4)Response

a.

5

b.

15

c.

25

d.

20

Question number: 7

» Mathematics » Statistics

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MCQ▾

Question

The value of is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 8

» Mathematics » Statistics

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MCQ▾

Question

The mean of first eight odd numbers is

Choices

Choice (4)Response

a.

5

b.

7.75

c.

12

d.

8

Question number: 9

» Mathematics » Statistics

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MCQ▾

Question

The price (in Rs. ) of 7 Pens are 15,21,14,25,28,19,31. The median is

Choices

Choice (4)Response

a.

25

b.

19

c.

31

d.

21

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