Answer
mean: $6.52\%$
modal class 0.8–4.4
No. The mean is not the best average for this set of data because the modal class is the lowest class, and most of the data were clustered on the left side of the total data range.
Work Step by Step
The mean is
$\frac{326.1}{50}=6.52\%$
The modal class is the class with the largest frequency.
Modal class = 0.8–4.4, since it has the highest frequency (26).
The mean is pulled slightly higher by a few states with very high foreign-born percentages (e.g., 23.0–26.6).
The modal class (0.8–4.4) shows that most states have relatively low percentages.
The data is skewed right, meaning the mean is higher than the mode and median.
The mean is not the best average here. The mode or median would better represent the typical state, since most states fall in the lower percentage range.
