What are some major ethnic groups in canada today and how might canada's population change in the future given recent immigration trends?

The arizona department of transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. at least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.09 of the true proportion?

If i see a courtesan and a naked person do i call the police?

Who was thomas jefferson and what was his constitution toward the development of the us government