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.

Question

Quizplus · Accepted Answer

All the statements provided are correct in the context of statistical analysis. Measures of central tendency and dispersion derived from frequency distributions are indeed approximations because they rely on grouped data rather than individual data points. In grouped data, each observation is assigned the value of its group's midpoint, which leads to the loss of specific individual data values, making all the statements accurate reflections of the limitations and characteristics of working with grouped data.

Which of the Following Statements Is Not Correct