An auction company sold 15 handheld computers last month. the final prices (in dollars) at which the items sold are as follows. 248248, 229229, 248248, 230230, 255255, 223223, 249249, 208208, 215215, 215215, 228228, 249249, 246246, 229229, 239239 a. construct a stem-and-leaf plot. b. summarize what this plot tells you about the data.