ACET (Actuarial Common Entrance Test) Statistics: Questions 109 - 115 of 201

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Question number: 109

» Measures of Location » Mean

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MCQ▾

Question

If the arithmetic mean and harmonic mean of two positive numbers are 4 and 16, then their geometric mean will be-

Choices

Choice (4)Response

a.

4

b.

16

c.

64

d.

8

Question number: 110

» Correlation and Regression » Regression

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MCQ▾

Question

For 10 observations on price (x) and supply (y), the following data was obtained:

What is the line of regression of y on x?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 111

» Discrete Distributions » Discrete Uniform

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MCQ▾

Question

What is the mean and variance of the random variable X which is distributed uniform discrete on

Choices

Choice (4)Response

a.

5,6.67

b.

6,5.7

c.

6.67,5

d.

5,25

Question number: 112

» Probabilities » Independence of Events

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MCQ▾

Question

If A and B are two independent events, and

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 113

» Discrete Random Variables » Mean, Mode, Median

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MCQ▾

Question

The probability distribution of a discrete random variable is given as follows-

The probability distribution The probability distribution

x

1

2

3

4

5

0.2

0.1

0.1

0.3

0.3

The median and mean of X are-

Choices

Choice (4)Response

a.

3.4,3.5

b.

3.2,3.5

c.

3.5,0.68

d.

3.5,3.4

Question number: 114

» Measures of Location » Mean

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MCQ▾

Question

The greater of the two numbers whose arithmetic mean is 34 and geometric mean is 16 is

Choices

Choice (4)Response

a.

64

b.

68

c.

256

d.

4

Question number: 115

» Probabilities » Basic Rules of Probabilities

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MCQ▾

Question

Let A and B are two events such that , then

Choices

Choice (4)Response

a.

b.

c.

d.

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