The information technology choice is a
| A. | Strategic decision |
| B. | Co-ordinated decision |
| C. | Planned decision |
| D. | Directed decision |
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Option: A Explanation : Click on Discuss to view users comments. |
Which of the following statement is/are true?
| A. | The basic understanding of the processes is essential even though the technology is a significant factor in a good design of information systems. |
| B. | The business management process has changed from function management to process management. |
| C. | The development of modern information system is a complex process. |
| D. | All of the above. |
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Option: D Explanation : Click on Discuss to view users comments. |
Match the following
List-I (Types of system) List-II (Elements)
(A) Data processing 1. Sales
(B) Transaction processing 2. Process management
(C) Functional system 3. Focus on computing
(D) Integrated 4. Transaction execution
| A. | (A) (B) (C) (d) 1 4 3 2 |
| B. | (A) (B) (C) (d) 3 4 1 2 |
| C. | (A) (B) (C) (d) 1 2 3 4 |
| D. | (A) (B) (C) (d) 1 3 2 4 |
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Option: B Explanation : Click on Discuss to view users comments. |
If covariance of X and Y is 12.3, variance of X is 16.4 and variance of Y is 13.8, then r will be
| A. | +0.79 |
| B. | +0.82 |
| C. | +0.80 |
| D. | +0.83 |
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Option: B Explanation :
Hence the answer is (b). Click on Discuss to view users comments. |
Eight coins are tossed together and the occurrence of a head is termed a success. Write down the Binomial distribution of probabilities for the occurrence of 0, 1, 2....8 heads. What is the arithmetic mean and what is the variance of this distribution?
| A. | 2 |
| B. | 9 |
| C. | 3 |
| D. | 5 |
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Option: A Explanation : P = 1/2, q = 1/2, n = 8 Mean = np = 8 x 1/2 = 4 Variance (σ)2 = npq or 8 x 1/2 x 1/2 = 2 Click on Discuss to view users comments. |
