quickly collected data for 100 coin flips and ana- lyzed the experimental outcomes versus the theo- retical probability of what was expected to happen. As the computer flipped the coin, it also displayed the data on a bar graph, a quick way to visually ana- lyze the results. The students watched the heights of the bars fluctuate as the frequencies of the outcomes changed with every flip. For one particular experi- ment, the bar graph indicated a higher frequency of
đang được dịch, vui lòng đợi..
