Business Statistics

81

R_1.23 computed by

A) $$\frac{{{r^2}_{12} + {r^2}_{23} + {r^2}_{13}}}{{\sqrt {1 - {r^2}_{23}} }}$$ B) $$\sqrt {\frac{{{r^2}_{12} + {r^2}_{13} - 2{r_{12}}{r_{13}}{r_{23}}}}{{1 - {r^2}_{23}}}} $$ C) $$\sqrt {\frac{{{r^2}_{12} + {r^2}_{23} + {r^2}_{13}}}{{r - 1}}} $$ D) None of these

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Answer & Solution

Answer: Option B

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82

Given
$$\sum $$dxdy = 2350, $$\sum $$d²x = 8250, $$\sum $$d²y = 724, then r will be

A) +0.92 B) +0.96 C) +0.36 D) +0.76

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Answer & Solution

Answer: Option B

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83

MIS evaluation includes

A) Financial consideration B) Operational feasibility C) Technical evaluation D) All of the above

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Answer & Solution

Answer: Option D

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84

Probability theory does not include

A) mathematical expectations B) conditional probability C) correlation analysis D) bernoulli's process

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Answer & Solution

Answer: Option C

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85

The density function is a measure of the concentration of probability within

A) Limit B) Distribution C) Probability theory D) Interval

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Answer & Solution

Answer: Option D

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86

SSAD stands for

A) Structured System Analysis and Design B) Structured System Analysis and Document C) Structured Social Analysis and Document D) Social System Analysis and Design

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Answer & Solution

Answer: Option A

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87

Match the items of List-I with the items of List-II and choose the correct answer.

List-I	List-II
a. Mean forecast error	1. Mean of absolute deviations of forecast demands from actual demand values
b. Mean absolute deviation	2. Mean of the squares of the deviations of forecast demands from actual demand values
c. Mean square error	3. Mean of the deviations of the forecast demands from actual demand
d. Mean absolute percent error	4. Mean of the percent deviations of the forecast demands from the actual demand

A) a-3, b-1, c-2, d-4 B) a-1, b-3, c-4, d-2 C) a-2, b-3, c-1, d-4 D) a-4, b-1, c-2, d-3

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Answer & Solution

Answer: Option A

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88

Match the following.

List-I (Degree of Correlation)	List-II (Measurement)
a. No correlation	1. 0
b. Perfect correlation	2. +1
c. Moderate correlation	3. 0.6 - 0.75
d. Very high correlation	4. 0.9 or more

A) a-1, b-3, c-2, d-4 B) a-1, b-2, c-3, d-4 C) a-1, b-3, c-4, d-2 D) a-1, b-4, c-2, d-3

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Answer & Solution

Answer: Option B

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89

If the decision process are . . . . . . . ., the information technology choice will weigh in favour of those systems, where the acquisition, processing, analysis and decision making will be at distributed nodel points.

A) Decentralised B) Managers process C) Business operation D) Centralised

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Answer & Solution

Answer: Option A

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90

The characteristics of a programming language are

A) Maintainability B) Compiler efficiency C) Easy to use D) All of these

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Answer & Solution

Answer: Option D

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