MTH302 Final Term Solved Paper Set 4

FINALTERM EXAMINATION

Fall 2009

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

Q1. Scatter plots are used only for (1 marks)

1. Quantitative variables
2. multi variable
3. surplus varible
4. None of these

Correct answer: multi variable

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.

Correct answer: Either Array1 or array2 is empty.

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

Correct answer: 210

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.

Correct answer: (ii) advertising

Q5. Whi ch 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

Correct answer: bar 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.

Correct answer: The mean is larger than the median

Q7. Whi ch 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

Correct answer: regression trend

Q8. Ho w 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

Correct answer: 300

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

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

Correct answer: 6720

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

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

Correct answer: Time series variations

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

Correct answer: The number of observations in each class

Q12. Twe lve 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

Correct answer: 4.75