题干

某小组做“用频率估计概率”的试验时,统计了某一事件发生的频率,绘制了如图所示的折线图.

该事件最有可能是____(填写一个你认为正确的序号).

①掷一个质地均匀的正六面体骰子,向上一面的点数是2;

②掷一枚硬币,正面朝上;

③暗箱中有1个红球和2个黄球,这些球除了颜色外无其他差别,从中任取一球是红球.

上一题 下一题 0.0难度 选择题 更新时间:2018-11-30 07:44:40

答案(点此获取答案解析)

③

同类题2

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。注意:C篇分A、B两种题型,A(易)种题型为客观题,B(难)种题型为主观题。

    Henry Ford was born on a farm on July 30th, 1863. The farm was near the city of Detroit.

    Henry was always interested in machines. He enjoyed fixing clocks.And he helped repair farm equipment. When Henry was sixteen years old, he left the family farm and went to Detroit to learn more about machines. Henry used what he learned from work to develop engines. In 1903, he was ready to start building cars for the public. On July 15th, 1903, a man named Doctor Pfenning bought the first car from the Ford Motor Company.

    The sale to Doctor Pfenning was the beginning of a huge number of requests for Ford cars.By the end of March, 1904, almost 600 Ford cars had been sold. At the start of 1905, the Ford Motor Company was producing 25 cars each day.

    Henry Ford was sure the future of the automobile industry was in a low-priced car for the general public. He said then, and many times after,“I want to make a car that anybody can buy.”

    In 1907, Henry Ford said: "I will build a motor car for the great mass of people. 1t will be large enough for the family, but small enough for one person to operate and care for. It will be built of the best materials. It will be built by the best men to be employed. And it will be built with the simplest plans that modern engineering can produce. It will be so low in price that no man making good money will be unable to own one.”