Exam Details
| Subject | business statistics | |
| Paper | ||
| Exam / Course | mba | |
| Department | ||
| Organization | Gujarat Technological University | |
| Position | ||
| Exam Date | December, 2018 | |
| City, State | gujarat, ahmedabad |
Question Paper
1
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
MBA (Integrated) SEMESTER 2 • EXAMINATION WINTER 2018
Subject Code: 2527102 Date:26/12/2018
Subject Name Business Statistics
Time: 02.30 pm 05.30 pm Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 Explain different types of Graphs and Charts. 07
Find Mean ,Median, Mode, Standard Deviation, Variance Coefficient of variation
Class 1-3 3-5 5-7 7-9 9-11 11-13
Frequency 4 12 13 19 7 5
07
Q.2 Find Range, Coefficient of Range, 40th Percentile Q2 Inter Quartile Range
Coefficient of QD.
18 20 22 27 21 29 27 29 28 29 16
07
Calculate missing frequencies if Median and Mode are 33.5 and 34 respectively.
C.I. 0 10 10 20 20 30 30 40 40 50 50 60 60 70 Total
Fre 4 16 6 4 230
07
OR
Explain level of Data Measurement. 07
Q.3 Two Batsmen X and Y made the following score. Whom will you select for future
14 13 26 53 17 29 79 36 84 49
37 22 56 52 28 30 37 48 20 40
07
Explain Important and limitation of Statistics. 07
OR
Q.3 Explain Kurtosis and Skewness in detail 07
Find 8P3 8C5 11C3 07
Q.4 Write a short note on Spearmen Rank Correlation. 07
Determine the equation of the Regression line.
X 23 29 29 35 42 46 50 54 64 66 76 78
Y 69 95 102 118 126 125 138 178 156 184 176 225
07
OR
Q.4 Write a short note on Regression Analysis. 07
Calculate Karl Pearson's co-efficient of correlation.
X 21 22 23 24 25 26 27 28 29
Y 20 19 19 17 17 16 16 15 14
07
Q.5 Explain Baye's theorem. 07
A pot contain 6 red marbles and 4 black marbles. Two marbles are drawn without
replacement from the pot. What is the probability that both of the marbles are black
07
OR
Q.5 A certain firm has Plants A and C producing 35% 25% and 40% respectively of total
output. The Probability of Non-Defective product from plants are 0.70 0.90 and 0.80
respectively. The products from these plants are mixed together and dispatched to
customers. A defective product was found ,what is the Probability that it comes from Plant
A Plant B and Plant C
07
Explain Structure of Probability. 07
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
MBA (Integrated) SEMESTER 2 • EXAMINATION WINTER 2018
Subject Code: 2527102 Date:26/12/2018
Subject Name Business Statistics
Time: 02.30 pm 05.30 pm Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 Explain different types of Graphs and Charts. 07
Find Mean ,Median, Mode, Standard Deviation, Variance Coefficient of variation
Class 1-3 3-5 5-7 7-9 9-11 11-13
Frequency 4 12 13 19 7 5
07
Q.2 Find Range, Coefficient of Range, 40th Percentile Q2 Inter Quartile Range
Coefficient of QD.
18 20 22 27 21 29 27 29 28 29 16
07
Calculate missing frequencies if Median and Mode are 33.5 and 34 respectively.
C.I. 0 10 10 20 20 30 30 40 40 50 50 60 60 70 Total
Fre 4 16 6 4 230
07
OR
Explain level of Data Measurement. 07
Q.3 Two Batsmen X and Y made the following score. Whom will you select for future
14 13 26 53 17 29 79 36 84 49
37 22 56 52 28 30 37 48 20 40
07
Explain Important and limitation of Statistics. 07
OR
Q.3 Explain Kurtosis and Skewness in detail 07
Find 8P3 8C5 11C3 07
Q.4 Write a short note on Spearmen Rank Correlation. 07
Determine the equation of the Regression line.
X 23 29 29 35 42 46 50 54 64 66 76 78
Y 69 95 102 118 126 125 138 178 156 184 176 225
07
OR
Q.4 Write a short note on Regression Analysis. 07
Calculate Karl Pearson's co-efficient of correlation.
X 21 22 23 24 25 26 27 28 29
Y 20 19 19 17 17 16 16 15 14
07
Q.5 Explain Baye's theorem. 07
A pot contain 6 red marbles and 4 black marbles. Two marbles are drawn without
replacement from the pot. What is the probability that both of the marbles are black
07
OR
Q.5 A certain firm has Plants A and C producing 35% 25% and 40% respectively of total
output. The Probability of Non-Defective product from plants are 0.70 0.90 and 0.80
respectively. The products from these plants are mixed together and dispatched to
customers. A defective product was found ,what is the Probability that it comes from Plant
A Plant B and Plant C
07
Explain Structure of Probability. 07
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