Ch. 2

GO OVER The grades on an easy test Choose the correct answer below. A. The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right. B. The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left. This is the correct answer. C. The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value.

The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left.

The amounts of time spent by students on a difficult lab practical exam ​(maximum time is less than 50​ minutes) Choose the correct answer below. A. The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value. Your answer is not correct. B. The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left. This is the correct answer. C. The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right.

The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left.

The grades on a difficult examination Choose the correct answer below. A. The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right. Your answer is correct. B. The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left. C. The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value.

The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right.

Would the data sets that follow possess relative frequency distributions that are​ symmetric, skewed to the​ right, or skewed to the​ left? Explain. Complete parts a through f below. a. The salaries of all persons employed by a large company Choose the correct answer below. A. The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left. B. The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value. C. The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right.

The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right.

GO OVER The amounts of time students in a class studied last month Choose the correct answer below. A. The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left. B. The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value. C. The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right.

The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value.

The ages of motorcycles on a ​used-motorcycle lot Choose the correct answer below. A. The data set is skewed right because the mean value would be more than the median value. There would be a​ few, but​ large, measurements that would pull the mean away from the median toward the right. B. The data set is skewed left because the mean value would be less than the median value. There would be a​ few, but​ small, measurements that would pull the mean away from the median toward the left. C. The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value.

The data set is symmetric because the mean value would be nearly the same as the median value. The measurements would be centered around a single value.