Questions

Question 1

Which of the following is least likely a necessary assumption of simple linear regression analysis? - the residuals are normaly distributes - there is a constant variance of the error term -

Answer 1

the dependent variable is uncorrelated with the residuals

Question 2

which type of probability distribution best represents the outcomes of rolling a dice?
- a discrete probability distribution
- a continuous probability distribution
-a normal distribution

Answer 2

a discrete probability distribution

Question 3

Among the following graphical tools for displaying data, which requires plotting the midpoints for each interval?
- cumulative frequence curve
- frequency polygon
- histogram

Answer 3

frequency polygon