Buy one get one free on earbuds , retail price is $25 each. i sell the earbuds for $17 each.
what is my cost for each pair of earbuds?
what is my profit for each pair of earbuds?
how much is the buyer saving off of retail?

Use the sample data and confidence level given below to complete parts a through d.a research institute poll asked respondents if they felt vulnerable to identity theft. in the poll, n=1090 and x=549 who said yes. use a 99% confidecne level.a. find the best point of estimate of the population of portion p.b. identify the value of the margin of error e.e= round to four decimal places as needed.c. construct the confidence interval._ < p < _ round to three decimal places.d. write a statement that correctly interprets the confidence interval.