Assume that from 1930 to 1960, the number of deaths from lead poisoning (per 100,000 people) decreased dramatically and could be modeled by f(x) = -0.0148x? +542x - 49,275, where x is the year. Determine when to the nearest year, this death rate was 75 or less by graphing yf(x) and y = 75 in 1930, 1980, 10 by 10, 200, 25)
OA 1964 or after
OB 1900 or after
OC 1973 or after
OD. 1967 or after

Apoll is being conducted at a mall nothingto obtain a sample of the population of an entire country. what is the frame for this type of​ sampling? who would be excluded from the survey and how might this affect the results of the​ survey? what is the frame for this type of​ sampling? a. the frame is people who need new clothes. b. the frame is people who shop at the mall. c. the frame is people who like to shop. d. the frame is the entire population of the country. who would be excluded from the survey and how might this affect the results of the​ survey? a. any person that does not need new clothes is excluded. this could result in sampling bias due to undercoverage. b. any person who does not shop at the mall is excluded. this could result in sampling bias due to undercoverage. c. any person who does not shop at the mall is excluded. this could result in nonresponse bias due to people not participating in the poll. d. there is nobody that is being excluded from the survey.