91Ó°ÊÓ

The mean wages for a sample of employees in a company was \(\$ 18.00\) per day with a standard deviation of \(\$ 2.50\) per day. Between what two values do \(95 \%\) of the data lie? (Assume the data set has a bell-shaped distribution.)

The weights (in pounds) of the defensive players on a high school football team are shown below. Draw a box-and-whisker plot that represents the data set and describe the shape of the distribution. \(\begin{array}{lllllllll}173 & 145 & 205 & 192 & 197 & 227 & 156 & 240 & 172 \\\ 208 & 185 & 190 & 167 & 212 & 228 & 190 & 184 & 195\end{array}\)

As of December 2016, there were 721 adult contemporary radio stations in the United States. One station finds that 115 stations have a larger daily audience than it has. What percentile does this station come closest to in the daily audience rankings? (Source: Radio-Locator.com)