The nonprofit group public agenda conducted telephone interviews with a stratified sample of parents of high school children. there were 202 black parents, 202 hispanic parents, and 201 white parents. one question asked was are the high schools in your state doing an excellent, good, fair or poor job, or don't you know enough to say? here are the survey results:

The american public was excited by the invention of the railroad system. true false

People of french origin make up about of the canadian population. 23 percent 50 percent 1 percent 76 percent

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.