A. Ordinal
B. Interval
C. Nominal
D. Ratio
✅ The correct answer is option B.
The ratio of the average deviations is called__________
A. Regression
B. Correlation
C. Skewness
D. All of these
✅ The correct answer is option A.
What will be the range of r when we find that the dependent variable increases as the independent variable increases?__________
A. 0 to -0.05
B. 1 to 2
C. 0 .1 to 1
D. None of these
✅ The correct answer is option C.
Which of the following is true if the estimating equation has to be a perfect estimator of the dependent variable?______________
A. The coefficient of determination is -1
B. All the data points are on the regression line.
C. The standard error of the estimate is zero
D. B and C
✅ The correct answer is option D.
When a multiple correlation coefficient R 1.23 =1 , then R 2.13 is________
A. 1
B. -1
C. 0
D. None of these
✅ The correct answer is option A.
When a multiple correlation coefficient r 1.2=1, then it shows __________
A. Reasonably good relationship
B. Lack of linear relationship
C. Perfect relationship
D. None of these
✅ The correct answer is option C.
When the two regression line coincide, then r is_________
A. 1
B. -1
C. 0
D. None of these
✅ The correct answer is option C.
Statistics branches include__________
A. Applied Statistics
B. Mathematical Statistics
C. Industry Statistics
D. Both A and B
✅ The correct answer is option D.
The variables whose calculation is done according to the weight, height and length and weight are known as__________
A. Flowchart Variables
B. Discrete Variables
C. Continuous Variables
D. Measuring Variables
✅ The correct answer is option C.
The number of accidents in a city during 2010 is___________
A. Discrete variable
B. Continuous variable
C. Qualitative variable
D. Constant
✅ The correct answer is option B.