C. The grades on a difficult quiz 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. B. 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. C. 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.

## Step 1<br />The problem is about understanding the concept of skewness in a data set. Skewness is a measure of the asymmetry of the distribution of a real-valued random variable about its mean. <br /><br />## Step 2<br />The problem states that the quiz was difficult, which implies that most students scored low, while a few students scored high. This situation is indicative of a right-skewed distribution.<br /><br />## Step 3<br />In a right-skewed distribution, the mean is greater than the median. This is because the mean is influenced by the high scores, while the median is not.<br /><br />## Step 4<br />Option B correctly describes this situation. It states that 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.