A confidence interval is centered around a: I. Parameter
II. Statistic
III. Measure of Variance.

A) I and II only
B) I only
C) II only
D) II and III only
E) III only

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet