In hospitals, boys and girls are always born together. Why?

Four-word explanation: pure coincidence. The so-called gathering is just a coincidence. Sometimes a ward is so coincidental that all three beds give birth to boys. Then everyone thinks how to get together and have boys this year.

If you go to the next ward, it may be all girls, nothing strange. Moreover, we often only see part of it and then enlarge it.

For example, several friends around me have given birth to girls, and then they will subconsciously search for people around them, all of whom are born girls. Come to a conclusion that girls will be born this year.

However, this search process is a round of exclusion. In fact, there are many boys. But because of their own exclusion, all the boys passed away. Only those who have given birth to girls are left in my mind.

Then, everyone subconsciously reached a * * * knowledge: there are more girls this year. In case I happen to meet another girl next, I will further confirm my argument. If you meet a boy, just listen and it's over.

In medicine, the probability of having a boy is the same as that of having a girl, both of which are 50%. Therefore, from a high probability, the proportion of male and female babies born in one year should also be balanced.

Sometimes it is such a coincidence. I remember when my sister gave birth to a baby, there were three beds in the hospital bed, and three babies were born two days ago and two days later. What a coincidence, all three are boys.

Although the probability that all three are boys is only one in eight, it is such a small probability that they meet. So, don't be surprised and surprised.