From Emma: What is a better way to express 400 in 7.5 billion?
My daughter has a rare condition, I want to know the answer to say “she is 1 in a ...” Answered by Penny Nom.

From Nieve Nielson: I have several questions to ask about the probability of getting a .400 in baseball:

What is the probability of a baseball player hitting a .400 in one game, considering that the hitter is up to bat four times?

What is the probability of a baseball player hitting a .400 in a season, considering that there are 100 games in a season? With the first two questions in mind:

Considering that baseball has been around for about 100 years, about how many people should hit .400 inthat time?

Answered by Chris Fisher.

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