Mrs. beck shops from the clearance rack of dresses. The stem and leaf plot represents the sale prices of dresses in Mrs. becks size. What statement is true? F: 20 percent of the dresses cost more than $50

G:one-fifth of the dresses range in price from $30 to $40

C:Fifteen percent of the dresses cost less than $20

D:Four percent of the dresses cost $65