MTH302 Final Term Solved Paper Set 2

FINALTERM EXAMINATION MTH302Business Mathematics & Statistics (Session - 1)

Q1. The c2 distribution is --------------- (1 marks)

1. Positively skewed
2. Negatively skewed
3. Symmetrical
4. None of these

Correct answer: Negatively skewed

Q2. In the regression line Y = a + bX., a represents (1 marks)

 Intercept of the line

 Slope of the line  Slope of the curve  None of the above

Q3. In the formula, (1 marks)

, e is a constant whose value is ……………

1. 2.71828
2. 3.14157
3. 22 / 7
4. 9.325

Correct answer: 2.71828

Q4. Which distribution is most commonly used for the continuous data? (1 marks)

1. Normal Distribution
2. Binomial Distribution
3. Poisson Distribution
4. Negative Binomial Distribution

Correct answer: Normal Distribution

Q5. For any event if the probability of success is x, then the probability of failure is (1 marks)

1. also x
2. 1 + x
3. 1 – x
4. x - 1

Correct answer: 1 – x

Q6. The standard deviation of any sampling distribution is called (1 marks)

1. sampling error
2. type –I error
3. standard error
4. non sampling error

Correct answer: standard error

Q7. For graphing univariate data we use (1 marks)

1. Pie charts, Bar charts .
2. Pareto diagrams.
3. Side by side chart .
4. Both (1) & (2)

Correct answer: Both (1) & (2)

Q8. Please choose one Interest paid (earned) on only the original principal borrowed (lent) is often referred to as (1 marks)

1. simple interest
2. present value
3. future value
4. compound interest

Correct answer: simple interest

Q9. The sales of a company increases from Rs.100,000 last month to Rs.120,000 this month. The percentage change in profit for the month? (1 marks)

1. 20%
2. 40%
3. 10%
4. 60%

Correct answer: 20%

Q10. Please choose one Amount of discount is obtained as (1 marks)

1. Percentage of Discount x List Price
2. Percentage of Discount / List Price
3. Percentage of Discount - List Price
4. None of these

Correct answer: None of these

Q11. If a and b are any two integers such that a<b then a-b is (1 marks)

1. positive
2. negative
3. canot be told
4. zero

Correct answer: negative

Q12. If the salary of an employee is 10,000 and his allowances are 5,000 then what is the taxable income of the employee? (1 marks)

1. 5,000
2. 10,000
3. Zero
4. 15,000

Correct answer: 10,000

Q13. Please choose one Compound interest is always: (1 marks)

1. Higher than simple interest
2. Smaller than simple interest
3. Less than annuity
4. Equals to simple interest

Correct answer: Higher than simple interest

Q14. The RSQ of any data is (1 marks)

1. Square root of correlation coefficient.
2. Square of correlation coefficient.
3. Correlation coefficient.
4. Slope of the data.

Correct answer: Square of correlation coefficient.

Q15. 12% of the electric bulbs manufactured by a company are defective. What is the probability that a bulb selected will not be defective? (1 marks)

1. 90 %
2. 88 %
3. 80 %
4. 85 %

Correct answer: 88 %

Q16. If there is a indirect relationship between rainfall & yield of crops then (1 marks)

1. Yield is higher if rainfall is less
2. Yield is lower if rainfall is less
3. Yield is higher if rainfall is higher

Correct answer: Yield is higher if rainfall is less