Part a if you were to randomly survey 1,000 people at a local grocery store about their use of corrective lenses, would this be a valid random sample for your study on use of corrective eyewear in the united states? why or why not?

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.