Will fgo's birthday card lottery be more possible?

In the role-playing mobile game Fate/Grand Order, the probability of drawing a birthday card will not be higher. In the game, the birthday has no effect on the card drawing probability. However, from the metaphysical point of view, it is better to believe in it than to believe in it. If you want to smoke something, you can change your birthday to Ling Ying's birthday, so there is no loss at all. If you take out the goods, you will be flattered.

Card drawing probability:

If there is only one five-star in the 100 lottery, the probability of this event is 36.8%, which is the highest. If 150 only draws a five-star, the event probability is 33.5%. If 200 draws only one five-star, the event probability is 27. 1%. If there is still only one five-star in 300 strokes, the event probability is 14.9%.

If Europe is compared, one of the 50 shots has five stars, and the probability of the event is 30.3%. 10 company has one, with a probability of 9.04%. Huang Ou pulled it out alone, and it was 1%. To sum up, it's 50 strokes 100 strokes 150 strokes or even 200 strokes for a five-star. In fact, the probability difference is not big, which means that 50-200 draws five stars, which is the level of most people.

This is different from the usual probability calculation. Usually, you will take some stones until you get a five-star, and each event is independent. This is to take a known number of n stones to draw, and then see how many there are in five stars.