MTH302 Final Term Solved Papers

Paper No 19

FINALTERM EXAMINATION Fall 2009 MTH302Business Mathematics & Statistics (Session - 2) Ref No: Time: 120 min Marks: 80

Q1. Scatterplots are used only for (1 marks)

1. quantitative variables
2. mulivariables
3. surplus varible
4. None of these

Q2. If the CORRELATION function returns the #DIV/0 ! error value, what is the possible reason of the error? (1 marks)

1. Array1 and Array2 have different number of data points.
2. Either Array1 or array2 is empty.
3. Array or reference argument contains text, logical values or empty cells.
4. The arguments are names, arrays, or references that contain numbers.

Q3. A college has 10 basketball players. A 5-member team and a captain will be selected out of these 10 players. How many different selections can be made? (1 marks)

1. 1260
2. 210
3. 10C6 * 6!
4. 10C5 * 6

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Q4. An insurance company wants to predict sales from the amount of money they spend on advertising. Which would be the independent variable? (1 marks)

1. (i) sales
2. (ii) advertising
3. (iii) insufficient information to decide
4. (iv) Both (i) and (ii) are correct.

Q5. Which of the following graphs is a visual presentation using horizontal or vertical bars to make comparisons or to show relationships on items of similar makeup? (1 marks)

1. bar graph
2. pie graph
3. pictograph
4. line graph

Q6. In a positively skewed distribution (1 marks)

1. The mean, median, and mode are all equal.
2. The mean is larger than the median
3. The median is larger than the mean.
4. The standard deviation must be larger than the mean or the median.

Q7. Which one of the following is not a component of the multiplicative time series model? (1 marks)

1. trend
2. irregular variation
3. regression trend
4. seasonality
5. cyclicity

Q8. How many number of times will the digit ‘7' be written when listing the integers from 1 to 1000? (1 marks)

1. 271
2. 300
3. 252
4. 304

Q9. How many arrangements can be made of the letter BUSINESS (1 marks)

1. 6723
2. 6725
3. 6720
4. 6721

Q10. The moving averages represent ------------------ (1 marks)

1. Time series variations
2. Co-efficient of variations
3. Statistical Dispersion
4. Absolute deviation

Q11. The class frequency is (1 marks)

1. The number of observations in each class
2. The difference between consecutive lower class limits
3. Always contains at least 5 observations
4. Usually a multiple of the lower limit of the first class

Q12. Twelve randomly-chosen students were asked how many times they had missed class during a certain semester, with this result: 2, 1, 5, 1, 1, 3, 4, 3, 1, 1, 5, 18. For this sample, the standard deviation is approximately (1 marks)

1. 4.75
2. 4.55
3. 3.03
4. 3.75

Q13. The experimental region is the range of the previously observed values of the dependent variable. (1 marks)

1. False
2. True

Q14. Which of the following is not a violation of the independence assumption? (1 marks)

1. Negative autocorrelation
2. A pattern of cyclical error terms over time
3. Positive autocorrelation
4. A pattern of alternating error terms overtime
5. A random pattern of error terms over time