If the coefficient of correlation , then the best-fit linear equation will include:
a. 75 of the data points.
b. 85 of the data points.
c. 95 of the data points.
d. all of the data points.
Question 2
Which of the following statements is not correct?
a. Measures of central tendency determined from frequency distributions will only be approximations of the actual values.
b. Measures of dispersion determined from frequency distributions will only be approximations of the actual values.
c. In grouped data, each observation is given the value of its classification's mid-point.
d. When data are grouped, the value of each individual observation is lost.
e. All of the above statements are correct.
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