Connor is constructing parallelogram abcd. he has plotted a at (−2, 4), b at (0, 3), and d at (−3, 2). which coordinate could be the location of point c?

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?