There are 50,000 households in a certain city. the average number of persons aged 16 and over living in each household is known to be 2.38, the sd is 1.87. a survey organization plans to take a simple random sample of 400 households and interview all persons age 16 and over living in the sample households. the total number of interviews will be or so.

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv