Find the range of the given data set. -4, -3, -1, -1, 0, 1

A50% increase followed by 33 1/2% decrease

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?