1. ___________ is the process of drawing conclusions about unknown characteristics of a population from data.
a. Logical inference
b. Post-data inference
c. Statistical inference
d. Random inference
2. Suppose that a scatter diagram of two variables depicts a relationship between the two variables that can be summarized by a straight line. The correlation coefficient is computed and results in a value of -0.73. Which of the following is not true?
a. There is a negative relationship between the two variables.
b. Two other variables having a correlation coefficient of -0.87 would have a stronger linear relationship.
c. Even though the correlation coefficient is less than zero, the correlation coefficient still communicates the strength of the linear relationship.
d. In general, an increase in one variable is associated with an increase in the other variable.
These objective questions belong to Statistics and the questions are about the process that helps drawing conclusions about unknown characteristics of data and scatter diagram with two variables being related in a straight line.
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