Your marketing agency wants to send a survey to 500 people. you desire the respondents to represent the full range of incomes under $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

I’m still confused on how to work the percentages

Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.

Which expression is equal to (f+g)(x)?