Magazines and newspapers often display information using circle,bar,and line graphs．The following examples illustrate how estimation techniques can be applied to each of these graphs． Circle graphs,also called pie c...Magazines and newspapers often display information using circle,bar,and line graphs．The following examples illustrate how estimation techniques can be applied to each of these graphs． Circle graphs,also called pie charts,show how a whole quantity is divided into parts．展开更多
文摘Magazines and newspapers often display information using circle,bar,and line graphs．The following examples illustrate how estimation techniques can be applied to each of these graphs． Circle graphs,also called pie charts,show how a whole quantity is divided into parts．
