This Paper has

**42**answerable questions with**0**answered.Roll No……………… | |

Time allowed : 3 hours | Maximum marks : 100 |

Total number of questions : 8 | Total number of printed pages : 2 |

PART —A (Answer Question No.1 which is compulsory and any two of the rest from this part.) |

Marks |

1. | (a) | Briefly discuss the following statements in the context of information systems: | 2each | |||

(i) | The systems approach is a variant of scientific method. | (0) | ||||

(ii) | In the present time, information is an important resource. | (0) | ||||

(iii) | Computer based financial information system supports finance managers in taking timely decisions. | (0) | ||||

(iv) | Security of computer hardware is an important issue of system implementation. | (0) | ||||

(v) | Data base management systems are replacing old file management systems. | (0) | ||||

(b) | Solve the following: | 5each | ||||

(i) | Subtract 150 from 350 using 2's complement method. | (0) | ||||

(ii) | Calculate the binary sum of 175 and 125. | (0) | ||||

(iii) | Find decimal equivalent of (300)_{8} | (0) | ||||

(iv) | Find hexadecimal equivalent of (49482)_{10} | (0) | ||||

(v) | Represent decimal number 4724.56 in floating point expression and mention mantissa and exponent components of this representation. | (0) | ||||

2. | Write notes on any three of the following: | 5each | ||||

(i) | Accounting information system | (0) | ||||

(ii) | Online and real time processing | (0) | ||||

(iii) | Software trends | (0) | ||||

(iv) | Advantages of data base systems | (0) | ||||

(v) | JAVA. | (0) | ||||

3. | (a) | What is 'system'? How does 'systems approach' help in business? Substantiate your answer by giving some examples of a system. | 5each | (0) | ||

(b) | “Random access method is superior to sequential access method in data base management system (DBMS).” Do you agree? Why? | 5each | (0) | |||

(c) | How does 'programming with modelling language/special purpose language' differ from the 'programming with general purpose language? | 5each | (0) | |||

4. | (a) | Explain the following in one or two line(s): | 1each | |||

(i) | Sub–system | (0) | ||||

(ii) | Optical disk | (0) | ||||

(iii) | RAM | (0) | ||||

(iv) | Joy stick | (0) | ||||

(v) | Multi–programming | (0) | ||||

(vi) | Key attributes | (0) | ||||

(vii) | Data dictionary | (0) | ||||

(viii) | Index files | (0) | ||||

(ix) | HTML | (0) | ||||

(b) | Distinguish between the following: | 3each | ||||

(i) | 'Serial ports' and 'parallel ports', | (0) | ||||

(ii) | ‘C’ and 'C++'. | (0) |

PART —B (Answer Question No.5 which is compulsory and any two of the rest from this part.) |

5. | (a) | Write short notes on the following: | 3each | |||||||||||||||||

(i) | Nature of quantitative techniques. | (0) | ||||||||||||||||||

(ii) | Advantage of linear programming | (0) | ||||||||||||||||||

(iii) | Types of index number | (0) | ||||||||||||||||||

(iv) | Significance of time series analysis. | (0) | ||||||||||||||||||

(b) | In a moderately symmetrical distribution— | 2each | ||||||||||||||||||

(i) | the arithmetic mean and mode are 20 and 18 respectively. Find the median. | (0) | ||||||||||||||||||

(ii) | the mode and median are 22 and 21.4 respectively. Find the arithmetic mean. | (0) | ||||||||||||||||||

(c) | The average rainfall for a week excluding Sunday was 10 cms. Due to heavy rainfall on Sunday, the average rainfall for the week rose to 15 cms. How much rainfall was there on Sunday ? | 4 | (0) | |||||||||||||||||

6. | (a) | Calculate the 4–yearly moving average of the given data:
| 8 | (0) | ||||||||||||||||

(b) | Distinguish between 'primary data' and 'secondary data'. Discuss various methods of collecting primary data. | 7 | (0) | |||||||||||||||||

7. | (a) | For a group of 30 male workers, the mean and standard deviation of weekly overtime work (number of hours) are 10 and 4 respectively. For another group of 20 female workers, the mean and standard deviation of weekly overtime work are 5 and 3 hours respectively. You are required to—
| 6+3 | (0) | ||||||||||||||||

(b) | A limited company wants to pay bonus to the-members of the staff. The bonus is paid as under:
Actual salaries of members of staff are given as under:
What is total bonus paid ? What is the average bonus paid per member of the staff? | 6 | (0) | |||||||||||||||||

8. | (a) | Following table gives two variables. The first variable is the number of hours of reading done by 8 students per week for preparation of a professional examination. The second variable is the marks obtained in the examination:
Calculate Karl Pearson's co–efficient of correlation. | 9 | (0) | ||||||||||||||||

(b) | "In the modern age of information technology, statistics can be applied to many areas." Write a note on important areas where statistics can be applied. | 6 | (0) |