An $18.1 million expansion and improvement project planned at Blank Park Zoo will include a new habitat for lions and other animals native to Africa as well as a new exhibit area called Wild Iowa that ...

Presented in Figure 1, the plot of squared residuals versus fitted values clearly shows an increasing trend in variance as the count values rise. This trend is further validated by the loess smooth ...

Though they are one of the largest student groups — California has more than 1 million students who are learning English as a second language, and that number is growing — their academic performance ...