Which one of the following statements must be true about the kite shown? ANSWERS: A) AB ≅ CB B) BD ≅ AC C) BE ≅ ED D) CD ≅ BC

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?