An experiment consists of measuring the speed of automobiles on a highway by the use of radar equipment. The random variable in this experiment is speed, measured in miles per hour. This random variable is a
a. discrete random variable
b. continuous random variable
c. complex random variable
d. None of these alternatives is correct.
Question 2
If the coefficient of correlation is a positive value, then
a. the intercept must also be positive
b. the coefficient of determination can be either negative or positive, depending on the value of the slope
c. the regression equation could have either a positive or a negative slope
d. the slope of the line must be positive
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