JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD BBA I Year BUSINESS STATISTICS Previous Question Paper (February/March-2023 - R22)
This question paper contains two parts A and B. Part A is for 10 marks and is compulsory. Part B consists of 50 marks, where the student should answer five questions, choosing one from each pair of alternatives provided.
Part A
Part A is a compulsory question which consists of ten sub-questions carrying equal marks.
Write any two applications of statistics.
Answer
Two applications of statistics are in business forecasting for predicting future sales and in quality control to monitor manufacturing processes.
Explain any two functions of statistics.
Answer
Two functions of statistics are: 1) Simplification, which involves condensing large masses of complex data into understandable forms like averages, and 2) Comparison, which allows for the analysis of relationships between different sets of data over time or across groups.
Define Secondary data.
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What is questionnaire?
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Calculate Median of 5, 6, 10, 8, 15, 3, 4.
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Write the relation between mean, median, and mode.
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Define quartile deviation.
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Define mean deviation.
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Give sources of information.
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What is diagram?
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Part B
Define the term “Statistics” and discuss its functions and limitations.
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What are the objectives of statistics?
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Explain the importance of Statistics with respect to Business and Industry.
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Discuss briefly about development of statistics.
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What are the points that are to be considered in the use of secondary data?
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Discuss the merits and demerits of primary data.
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What are the essentials of a questionnaire? Draft a questionnaire not exceeding ten questions to study the views on educational programmes of television and indicate an outline of the design of the survey.
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Delta Tiers employed 159 employees for a factory located at Kanpur. The company's management is worried about the high absenteeism rate. Compute Mean, median and mode from the following data:
| Vacations availed | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 |
|---|---|---|---|---|---|---|---|
| No. of employees | 2 | 18 | 30 | 45 | 35 | 20 | 6 |
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The following data reveals the scores obtained by 40 employees during evaluation of a training programme. Construct a frequency distribution based on the above data:
42, 45, 65, 76, 89, 90, 67, 45, 34, 56, 87, 98, 78, 45, 45, 56, 76, 89, 45, 34, 23, 56, 45, 32, 87, 56, 67, 56, 34, 87, 98, 12, 34, 42, 45, 82, 54, 88, 61, 79
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The consumption of printing paper reams (in units) for the first 11 months is: 10, 11, 12, 15, 18, 22, 8, 10, 12, 15, 25. Find the median, Q1, and Q3.
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Find the standard deviation from the following distribution:
| Income (Rs) | 30-40 | 40-50 | 50-60 | 60-70 | 70-80 | 80-90 | 90-100 |
|---|---|---|---|---|---|---|---|
| No. of persons | 6 | 12 | 18 | 13 | 9 | 4 | 1 |
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Discuss the various one-dimensional diagrams.
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Construct a bar chart from the following data: Raipur: 100, Nagpur: 120, Indore: 60, Bhopal: 76, Gwalior: 80, Kanpur: 140, Bilaspur: 50.
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What is tabulation? Explain the various parts of a Table.
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Construct a pie chart for the data provided: SAIL: 719.1, Tata Iron: 242.6, Mukand: 2.6, Jindal: 24.0, Essar: 2.6.
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