The story of the movie Inside Out mostly takes place inside the mind of 11-year-old Riley as she moves from Minnesota to San Francisco. The main characters are Riley's emotions---Joy, Sadness, Disgust, Anger and Fear, which guide her decisions and often compete with one another for control of her brain.

    Fear is tall, thin, looks like a frayed(焦燥的)nerve and is purple. Not only that, his eyes are purple, too. Anger, which is red, looks like a brick and has red eyes. Disgust, who is green, has green eyes. Sadness, not surprisingly, is completely blue, and even looks like a teardrop. But Joy, who is mainly yellow, has more than one color in her. She has blue eyes and blue hair. Why? Well, if blue represents sadness, then the message is clear: there is no such ting as “pure joy”. Instead, even in our most joyous times, there is often sadness mixed in.

    After all, one of the most joyous moments we can experience is a wedding, but it may end with the breaking of a glass. It reminds us that our world is still broken. In order words, even at our highest moments, there is always a little sadness.

    But the comfort is that the reverse is often true. Think about how you feel after crying. When you cry, your body is releasing some chemicals that often make you feel good. And that's why you feel at ease after a good cry.

    Indeed, Inside Out reminds us that even the emotions that appear “negative' have value. In other words, Inside Out shows us that the goal of life isn't “to be happy”. We will feel sad, angry or frightened. But we need our whole range of emotions for developing our sense of self and our relationship with others.

一只不透明的袋子中装有1个白球、2个黄球和3个红球，每个球除颜色外都相同，将球摇匀，从中任意摸出一个球：

（1）该球是白球；

（2）该球是黄球；

（3）该球是红球．

估计上述事件发生的可能性的大小，将这些事件的序号按发生的可能性从小到大的顺序排列．