"Teacher, I found something wrong with the probability formula!"

"oh? Tell me your reasons. "

"There are 50 students in our class. According to the calculation, the probability of being asked is 2%, but today you almost let this course.

I answered all the questions. "

2. Possibility

I visited the weather station and saw many latest weather forecasting instruments. After the visit, I asked the stationmaster, "You said there were hundreds."

How is the 75th probability calculated when it rains? "

Without much thought, the stationmaster replied, "That is to say, there are four people here, and three of them think it will rain."

3. Negative numbers

Mathematicians, biologists and physicists sat in street cafes and watched people walk into a house across the street.

Get out. They first saw two people go in, and after a long time, they saw three people come out. Physicist: "Do you measure?"

Accurate enough. Biologist: "They reproduce." Mathematician: "If one more person goes in now, then the house."

It will be empty. "

4. Statisticians

Mathematics consists of 50% formula, 50% proof and 50% imagination. Topologists can't tell coffee cups from bagels.

. The head of the statistician will say, "It feels good on average."

5, the height of the flagpole

A team of engineers are measuring the height of the flagpole. They only have a tape measure, which is difficult to fix on the flagpole because of the leather.

Rulers always fall. A mathematician passed by and pulled out the flagpole, so it was easy to measure the data. After he left, an engineer

The teacher said to the other, "Mathematicians always do this." We asked for height, but he gave us length! " "

6. What is π?

Mathematician: π is the ratio of circumference to diameter. Engineer: π is about 22/7. Computer Programmer: Under double precision

π is 3. 14 159653589. Nutritionist: You die-hard math brains, the "pie" is delicious and healthy.

Kangde dessert