Ellen can read 3 pages in 7 minutes. Rob can read 8 pages in 14 minutes.
Who is the faster reader? Justify your
answer.

Rob is the faster reader.

7 in half is 3.5, and 14 in half is 7. 8 is over 7, and 3 is under 3.5:

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.