ADMS 2320 Study Guide - Quartile, Interquartile Range, By2

54 views24 pages

Document Summary

In the following multiple choice questions, please circle the correct answer. Answer: less than 0. 50 if the distribution is skewed to the left a. Which of the following state m e n t s is true: when the distribution is skewed to the left, mean > median > mode, when the distribution is skewed to the right, mean < median < mode. 9. less than 0. 50 if the distribution is skewed to the left. A sample of 20 observations has a standar d deviation of 3. The sum of the squar ed deviations from the sam ple mean is: 20, 23, 29, 60, 171. Which measur e of central location is meaningful when the data are nominal: the arithm etic mean, the geom e tric mean, the median, the mode. Which of the following are measur e s of the linear relationship betwe en two variables: the covariance, the coefficient of correlation, the variance, both a and b.