An in depth analysis of the probability that one of them is a girl and the other is also a girl

I think the most unbearable thing for girls is probably obscene boys. The problem with lewd boys is selfishness, a penchant for malicious speculation, and a lack of sincerity. So, if you want to pursue a girl, first turn yourself into a guy with good intentions and sincerity.

Money is not the most important thing

There are a lot of boys who can't chase girls, and they will think that who makes me not rich and handsome, who makes me have no money, this kind of thinking is not to mention negative, and I think it's quite disrespectful to girls.

I believe that most girls still hope to find a reliable, trustworthy boy who can understand themselves for their emotional needs.

If you're complaining about girls being too realistic, see if you're good enough in other areas. If you're poor, boring, selfish, and don't care about people, then of course the girl will question a little: Why should I be dating this guy? 」

Money is such a thing, with age.

Regardless of the men and women in front of you, the probability of each one is 1 2 anyway.

Analysis: The probability that the family has two children, one is a girl, and the other is a girl is 1 2, because these two are independent events, and if a child is born, the probability of xx and xy chromosome binding is the same, so it is 1 2.

Meaning: An event that may or may not occur under certain conditions is called a random event.

Usually an event in an experiment consists of a basic event. If there are n possible outcomes in an experiment, i.e., the experiment consists of n basic events, and all outcomes are equally likely, then such events are called equal possible events.

Mutex Event: Two events that cannot occur at the same time are called mutex events.

Opposing events: i.e., there must be a mutually exclusive event that occurs called an opposing event.

Analysis: The probability that the family has two children, one is a girl, and the other is a girl is 1 2, because these two are independent events, and if a child is born, the probability of xx and xy chromosome binding is the same, so it is 1 2.

1 2, regardless of the previous men and women, the probability of each one is 1 2 anyway

Let A be a girl and B be another girl too. p(a) is the probability that one of them is a girl. Subtract the probability that all are boys by 1.

p(a)=1-1 4=3 is the probability that both are girls. p(ab)=1/4.According to the formula:

p(b a)=p(ab) p(a)=1 is the probability that one of them is a girl when the other is also a girl, i.e., the problem.

I learned biology in this high school, so it's half and half

Recently, I saw a news story that a village can maintain the balance between men and women by eating something, this is amazing!