MTH601 Final Term Solved Paper

MTH601 FINAL TERM SOLVED PAPER (VISIT VURANK FOR MORE)

Q1. In scatter diagram if both variables X and Y tend to move in the same direction the correlation is called (1 marks)

1. Negative
2. No Correlation
3. Curvilinear
4. Positive

Q2. In EXCEL use the …………….function to calculate correlation (1 marks)

1. COREL
2. CORREL
3. CORRELE
4. CORRELATION

Q3. Slope of the line passing through the points A (2, 3) and B (3, 4) is (1 marks)

1. Zero
2. One
3. Two
4. Three

Q4. The equation for the intercept of the regression line is Y (1 marks)

a bX where b is

1. Intercept
2. Slope
3. Equation
4. Dependant variable

Q5. The correlation coefficient between x and y shows (1 marks)

1. Whether y depends on x
2. whether x causes y
3. whether there is any relation between x and y
4. whether there is a linear relation between x and y

Q6. In a linear regression of y on x, y = a + bx, (1 marks)

1. the variance of x is constant for all values of y
2. a fitted straight line goes through (0, 0)
3. Both variables have the same variance
4. x is the explanatory variable

Q7. Equation for the line having slope 5 and intercept 3 is (1 marks)

Y X 5( 2) y x

1. Y

X Y X

Q8. As the relationship deteriorates from a perfect correlation, what happens to the points on a scatter diagram? (1 marks)

1. They become more scattered.
2. The slope changes.
3. The y-intercept changes.
4. Both (ii) and (iii), above.