Your marketing agency wants to send a survey to 500 people. You desire the respondents to represent the full range of incomes un
der $100,000 per year. You are authorized to purchase 500 names chosen at random from 1 of the following 3 databases. Which database is most likely to fit your needs, and why? Income distribution Database 1 Database 2 Database 3 Mean $25,625 $49,205 $88,340 Standard deviation $15,990 $25,485 $35,870 Database 1, because its mean is farthest from the limit of $100,000 Database 1, because its standard deviation is smallest and so the data are most focused Database 2, because its mean is centered between $0 and $100,000 Database 3, because its mean is closest to $100,000 Database 3, because its standard deviation is largest
